Irodori彩り

#B7282E 茜

Color conversion · Variations · Color combinations · Color contrast checker

Color conversion

#B7282E茜

CMYK profile: Coated FOGRA39 · Formats follow CSS Color 4 naming and WCAG 2.2 contrast rules.

At a glance

Name茜
Romanizationakane
TraditionJapanese traditional colors
AttributeAutumn
FamilyOrange
HEX#B7282E
RGBrgb(183,40,46)
HSLhsl(357 64% 44%)
HSVhsv(357, 78%, 72%)
OKLCHoklch(0.512 0.179 24.4)
LABlab(40.87 56.08 32.90)
XYZ21,12,4
CMYKcmyk(0.0% 78.1% 74.9% 28.2%)
RAL#B42041 · Raspberry red · RAL 3027

About this color

akaneOrangeJapanese traditional colors

Warmth that invites a smile

茜 is #B7282E, a Orange tone with a clear cultural lineage. Read on its own it belongs to the Orange family; read through its Japanese traditional colors roots, it carries a second layer of meaning.

Design tip

Test 茜 (#B7282E) on a neutral surface first; a Orange accent then looks intentional rather than decorative.

Best use

Give 茜 the single element that must be noticed first, and let the rest of the Orange palette support it.

warmplayfulfriendlyaffordableenergetic

Psychology

How it is perceived

warmplayfulfriendlyaffordableenergetic

Psychological effect

茜 raises the perceived energy of a Orange composition and pulls the eye toward action.

Emotional impact

It feels immediate and warm, so it can lift a restrained layout without making it loud.

Symbolism

What it stands for

friendlinesscreativity and value

Cultural significance

In Japanese traditional colors settings the shade carries local references, so verify its symbolism before a campaign.

Positive associations

Positive associations lean toward friendliness, creativity and value, which is why it appears in invitations and seasonal work.

Use with care

Too much surface area can read as cheapness or noise in large doses, so keep it to accents and small fields.

Where it appears

Common design applications

Campaign landing pages
Give 茜 the single element that must be noticed first, and let the rest of the Orange palette support it.
Editorial cover systems
Give 茜 the single element that must be noticed first, and let the rest of the Orange palette support it.
Product packaging labels
Give 茜 the single element that must be noticed first, and let the rest of the Orange palette support it.
Dashboard status accents
Give 茜 the single element that must be noticed first, and let the rest of the Orange palette support it.
Retail wayfinding signs
Give 茜 the single element that must be noticed first, and let the rest of the Orange palette support it.

Design guidance

How to make it work

Do

  • Keep saturated fills below about twenty percent of the layout.
  • Use it for the primary call to action and nothing else.
  • Check the pairing at small sizes on a neutral background.

Avoid

  • Do not place it beside clashing neon greens or electric blues.
  • Never use it for long body text on white.
  • Avoid gradients that shift its hue into another family.
Brand fit
food, retail, travel, education

Brands built on The Everyman, The Jester use it to signal character before they say a word.

Trend signal
Warmth that invites a smile

Orange sits between heat and sociability, closer to apricot or terracotta than to neon. It feels handmade, generous and slightly informal.

Pairing

Colors that complete it

#007F96editorial layouts that need one warm focal point
#790000interfaces where an accent has to stay legible
#007F06packaging that should feel appetizing without shouting

History

Pigments and provenance

Before synthetic dyes, 茜 was matched with mineral and plant pigments, and the Orange family depended on sources such as ochre, madder and indigo. Screens now reproduce it more consistently than any single pigment ever could.

Tags

warmplayfulfriendlyaffordableenergeticfriendlinesscreativity and valueOrange

Origins & sources

Etymology: “Akane” comes from madder, long used to dye red.

Pigment / material: A red from alizarin in madder roots (Rubia cordifolia and others).

Variations

Shades darken and tints lighten while the hue angle stays fixed.

Pro tip: Shades darken and tints lighten while the hue angle stays fixed.

Shades

Darker steps built from the same hue.

0% #B7282E
10% #A52429
20% #922025
30% #801C20
40% #6E181C
50% #5C1417
60% #491012
70% #370C0E
80% #250809
90% #120405
100% #000000

Tints

Lighter steps for surfaces and backgrounds.

0% #B7282E
10% #BE3E43
20% #C55358
30% #CD696D
40% #D47E82
50% #DB9497
60% #E2A9AB
70% #E9BFC0
80% #F1D4D5
90% #F8EAEA
100% #FFFFFF

Design scale 50–950

50#FFE9E5100#FFD9D2200#FFBAB3300#FF9A92400#FF7973500#E25352600#C43B3C700#A4272B800#82151B900#600910950#420609
Dark-mode value (AA): #DA4B4A · 4.56:1

Use cases

  • Shades → hover, shadows, depth
  • Tints → highlights, surfaces
  • Balance → consistent color systems

Design tip

Keep one dominant tone, one supporter and one accent.

Across color systems

The closest named color in each tradition and design system, measured in OKLCH ΔE. Lower means closer.

Asian color traditions

茜 JP ΔE 0.000
Sơn điệp VN ΔE 0.009
纁 KR ΔE 0.013
Show all (6)
Merah ID ΔE 0.022
कुमकुम IN ΔE 0.023
สีชาด TH ΔE 0.023
朱砂 CN ΔE 0.024
Улаан MN ΔE 0.024
朱砂 TB ΔE 0.032

Design systems

Error 40 Material ΔE 0.011
Red 700 UnoCSS ΔE 0.013
Red 700 Panda ΔE 0.013
Show all (11)
Rose 13 Polaris ΔE 0.025
Volcano 8 Ant Design ΔE 0.027
Red 700 Tailwind ΔE 0.030
Office 60 Fluent ΔE 0.030
Pink 800 Open Color ΔE 0.031
Red 600 Chakra ΔE 0.033
Plum 11 Radix ΔE 0.035
Danger Primer ΔE 0.048
Purple Bootstrap ΔE 0.068
Brand (contract) vanilla-extract ΔE 0.140
Secondary StyleX ΔE 0.202

RAL Classic

Raspberry red · RAL 3027 RAL ΔE 0.009
Try any color

Where it sits in the library

These figures come from a build-time ranking across all 116 traditional colors on the site, not from hand-written description.

  • Lightness L* 40.9 — rank 86 of 116 traditional colors (darker third).
  • Chroma C 65.022 — rank 27 (high chroma).
  • Hue 357°, in the orange family.
  • Closest neighbor in the same hue family: “緋”, ΔE OK 0.064.

Can three steps of one hue work together

Three steps from the 50–950 scale of “茜”: same hue, only lightness differs. Below is the contrast whenever one of them is text on another.

200#FFBAB3
500#E25352
800#82151B
  • 200 ↔ 500: 2.31:1 (FAIL)
  • 500 ↔ 800: 2.70:1 (FAIL)
  • 200 ↔ 800: 6.24:1 (AA)

Pairs reaching 4.5:1 (AA body text): 1 of 3. Pairs reaching 3:1 (large text, icons, borders): 1 of 3. The rest fall below 3:1 and should not carry text.

Color combinations

Rotate the hue wheel while holding lightness steady.

How to use it

Three moves keep the color readable and deliberate.

Why it works

The perceptual reasoning behind the palette.

All six palettes rotate hue at similar lightness, so the best in-group contrast falls between 1.01:1 and 1.66:1. Use them for fills, charts and graphics rather than as text on each other — when you need text, use a neutral or a darker step of the same scale.

Complementary

Opposite the hue wheel; it sharpens the focal color by contrast.

#B7282E#007F96

Best use: Calls to action and single-feature highlights

Split-complementary

Two neighbors of the opposite hue; softer than a direct complement.

#B7282E#00845F#0071BC

Best use: Balanced marketing layouts with two accents

Triadic

Three hues spaced evenly; lively but needs one dominant voice.

#B7282E#007F06#305DCB

Best use: Event identities and playful editorial spreads

Analogous

Neighbors on the wheel; quiet, cohesive and easy to scan.

#AE296D#B7282E#AF3D00

Best use: Backgrounds, charts and calm product pages

Monochromatic

One hue across lightness steps; disciplined and premium.

#841D21#B7282E#CB6469

Best use: Design systems, packaging and typographic hierarchy

Tetradic

Two complementary pairs; rich, but requires strict proportion.

#B7282E#955800#007F96#305DCB

Best use: Complex dashboards and multi-service brands

Export the scale

CSS

:root {
  --brand-50: #FFE9E5;
  --brand-100: #FFD9D2;
  --brand-200: #FFBAB3;
  --brand-300: #FF9A92;
  --brand-400: #FF7973;
  --brand-500: #E25352;
  --brand-600: #C43B3C;
  --brand-700: #A4272B;
  --brand-800: #82151B;
  --brand-900: #600910;
  --brand-950: #420609;
}

Tailwind

theme: {
  extend: {
    colors: {
      brand: {
        50: '#FFE9E5',
        100: '#FFD9D2',
        200: '#FFBAB3',
        300: '#FF9A92',
        400: '#FF7973',
        500: '#E25352',
        600: '#C43B3C',
        700: '#A4272B',
        800: '#82151B',
        900: '#600910',
        950: '#420609',
      },
    },
  },
}

Figma

{
  "brand": {
    "50": {
      "$type": "color",
      "$value": "#FFE9E5"
    },
    "100": {
      "$type": "color",
      "$value": "#FFD9D2"
    },
    "200": {
      "$type": "color",
      "$value": "#FFBAB3"
    },
    "300": {
      "$type": "color",
      "$value": "#FF9A92"
    },
    "400": {
      "$type": "color",
      "$value": "#FF7973"
    },
    "500": {
      "$type": "color",
      "$value": "#E25352"
    },
    "600": {
      "$type": "color",
      "$value": "#C43B3C"
    },
    "700": {
      "$type": "color",
      "$value": "#A4272B"
    },
    "800": {
      "$type": "color",
      "$value": "#82151B"
    },
    "900": {
      "$type": "color",
      "$value": "#600910"
    },
    "950": {
      "$type": "color",
      "$value": "#420609"
    }
  }
}

SVG

<svg xmlns="http://www.w3.org/2000/svg" width="1100" height="120">
  <rect x="0" y="0" width="100" height="90" fill="#FFE9E5"/>
  <rect x="100" y="0" width="100" height="90" fill="#FFD9D2"/>
  <rect x="200" y="0" width="100" height="90" fill="#FFBAB3"/>
  <rect x="300" y="0" width="100" height="90" fill="#FF9A92"/>
  <rect x="400" y="0" width="100" height="90" fill="#FF7973"/>
  <rect x="500" y="0" width="100" height="90" fill="#E25352"/>
  <rect x="600" y="0" width="100" height="90" fill="#C43B3C"/>
  <rect x="700" y="0" width="100" height="90" fill="#A4272B"/>
  <rect x="800" y="0" width="100" height="90" fill="#82151B"/>
  <rect x="900" y="0" width="100" height="90" fill="#600910"/>
  <rect x="1000" y="0" width="100" height="90" fill="#420609"/>
  <text x="50" y="112" font-family="monospace" font-size="10" text-anchor="middle" fill="#444">50</text>
  <text x="150" y="112" font-family="monospace" font-size="10" text-anchor="middle" fill="#444">100</text>
  <text x="250" y="112" font-family="monospace" font-size="10" text-anchor="middle" fill="#444">200</text>
  <text x="350" y="112" font-family="monospace" font-size="10" text-anchor="middle" fill="#444">300</text>
  <text x="450" y="112" font-family="monospace" font-size="10" text-anchor="middle" fill="#444">400</text>
  <text x="550" y="112" font-family="monospace" font-size="10" text-anchor="middle" fill="#444">500</text>
  <text x="650" y="112" font-family="monospace" font-size="10" text-anchor="middle" fill="#444">600</text>
  <text x="750" y="112" font-family="monospace" font-size="10" text-anchor="middle" fill="#444">700</text>
  <text x="850" y="112" font-family="monospace" font-size="10" text-anchor="middle" fill="#444">800</text>
  <text x="950" y="112" font-family="monospace" font-size="10" text-anchor="middle" fill="#444">900</text>
  <text x="1050" y="112" font-family="monospace" font-size="10" text-anchor="middle" fill="#444">950</text>
</svg>

iOS

extension UIColor {
  static let brand50 = UIColor(red: 1.000, green: 0.914, blue: 0.898, alpha: 1.0)
  static let brand100 = UIColor(red: 1.000, green: 0.851, blue: 0.824, alpha: 1.0)
  static let brand200 = UIColor(red: 1.000, green: 0.729, blue: 0.702, alpha: 1.0)
  static let brand300 = UIColor(red: 1.000, green: 0.604, blue: 0.573, alpha: 1.0)
  static let brand400 = UIColor(red: 1.000, green: 0.475, blue: 0.451, alpha: 1.0)
  static let brand500 = UIColor(red: 0.886, green: 0.325, blue: 0.322, alpha: 1.0)
  static let brand600 = UIColor(red: 0.769, green: 0.231, blue: 0.235, alpha: 1.0)
  static let brand700 = UIColor(red: 0.643, green: 0.153, blue: 0.169, alpha: 1.0)
  static let brand800 = UIColor(red: 0.510, green: 0.082, blue: 0.106, alpha: 1.0)
  static let brand900 = UIColor(red: 0.376, green: 0.035, blue: 0.063, alpha: 1.0)
  static let brand950 = UIColor(red: 0.259, green: 0.024, blue: 0.035, alpha: 1.0)
}

Android

<resources>
  <color name="brand_50">#FFE9E5</color>
  <color name="brand_100">#FFD9D2</color>
  <color name="brand_200">#FFBAB3</color>
  <color name="brand_300">#FF9A92</color>
  <color name="brand_400">#FF7973</color>
  <color name="brand_500">#E25352</color>
  <color name="brand_600">#C43B3C</color>
  <color name="brand_700">#A4272B</color>
  <color name="brand_800">#82151B</color>
  <color name="brand_900">#600910</color>
  <color name="brand_950">#420609</color>
</resources>

Principles

Balance

Keep one dominant tone, one supporter and one accent.

Contrast

Test body text against both white and black before shipping.

Harmony

Rotate the hue wheel while holding lightness steady.

Color contrast checker

Test body text against both white and black before shipping.

6.26 :1
AA
Quote

Give 茜 the single element that must be noticed first, and let the rest of the Orange palette support it.

WCAG contrast
Preview
Aa / Bb
#B7282E · 茜

WCAG contrast standards

WCAG 2.2 sets minimum contrast for text and interface parts. #B7282E measures 6.26:1 against white (AA) and 3.02:1 against black (FAIL). Use the table below to choose the right threshold for the text size.

LevelNormal textLarge text (18pt+ / 14pt bold)Icons & UI parts
AAA7 : 14.5 : 1—
AA4.5 : 13 : 13 : 1
Fails< 4.5 : 1< 3 : 1< 3 : 1

Large text means 18pt regular or 14pt bold. UI parts need 3:1 against adjacent colors. AA is the common compliance baseline; AAA is enhanced.

Technical formats

Notation across color spaces

HEX
#B7282E

CSS Color 4

RGB
183,40,46

sRGB / D65

HSL
357,64,44

HSL

OKLCH
oklch(0.512 0.179 24.4)

perceptual

LAB
41,56,33

CIE Lab

LCH
41,65,30

CIE LCH

XYZ
21,12,4

CIE XYZ

LUV
41,106,21

CIE LUV

HWB
357,16,28

CSS HWB

CMYK
0,78,75,28

print

Practical formats

Ready-to-use values

CSS
color: #B7282E;

custom properties

Tailwind
bg-[#B7282E] text-[#FFF]

arbitrary value

Android
#FFB7282E

ARGB

Flutter
Color(0xFFB7282E)

dart:ui

Photoshop
R 183 G 40 B 46 · C 0 M 78 Y 75 K 28

RGB / CMYK

Print
CMYK 0,78,75,28

FOGRA39

Color analysis

Measured color properties

Lightness
0.118

relative luminance · warm

Contrast
6.26 : 1

vs white · AA · warm

Contrast
3.02 : 1

vs black · FAIL · warm

Hue
357°

saturation 64% · warm

LCH
41,65,30

lightness 44% · warm

Delta E
19.7

緋 #D3381C · warm

Blindness simulator

How it reads with color vision deficiency

Preview
#B7282E
Protanopia
#3D392E
Deuteranopia
#5B502C
Tritanopia
#DA1E2B

How it reads with color vision deficiency · ΔE 19.7

Creative aspects

Culture, mood and story

Mood
warm, playful, friendly, affordable, energetic

It is commonly read as energy, warmth, confidence and a trace of ceremony.

Family
Orange · oklch(0.512 0.179 24.4)

It is commonly read as energy, warmth, confidence and a trace of ceremony.

Usage
Campaign landing pages

It is commonly read as energy, warmth, confidence and a trace of ceremony.

Style
Warmth that invites a smile

It is commonly read as energy, warmth, confidence and a trace of ceremony.

Inspired by
Autumn

It is commonly read as energy, warmth, confidence and a trace of ceremony.

More in this palette

Frequently asked questions

What color is #B7282E?
茜 is #B7282E, or #B7282E in uppercase notation. In RGB it is rgb(183,40,46), in HSL about hsl(357 64% 44%), and in OKLCH oklch(0.512 0.179 24.4).
How should I use 茜 in design?
Give it one focal element, keep body copy neutral and confirm contrast at 6.26 against white and 3.02 against black.
Is 茜 accessible?
Contrast is 6.26 against white (AA) and 3.02 against black (FAIL). Use it for large text when the level reaches AA.