Irodori彩り

#434343 Charcoal

Generate color codes, variations, harmonies and check contrast.

Color conversion

#434343Charcoal

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

At a glance

NameCharcoal
RomanizationCharcoal
Traditiondigital color
FamilyGrey
HEX#434343
RGBrgb(67,67,67)
HSLhsl(0 0% 26%)
HSVhsv(0, 0%, 26%)
OKLCHoklch(0.383 0.000 89.9)
LABlab(28.41 -0.00 0.00)
XYZ5,6,6
CMYKcmyk(0.0% 0.0% 0.0% 73.7%)
RAL#40433B · Grey olive · RAL 6006

About this color

CharcoalGreydigital color

Quiet structure, clear precision

Charcoal is #434343, a Grey tone with a clear cultural lineage. Read on its own it belongs to the Grey family; read through its digital color roots, it carries a second layer of meaning.

Design tip

Test Charcoal (#434343) on a neutral surface first; a Grey accent then looks intentional rather than decorative.

Best use

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

neutralprecisestructuredquietprofessional

Psychology

How it is perceived

neutralprecisestructuredquietprofessional

Psychological effect

Charcoal raises the perceived energy of a Grey 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

stabilityneutrality and sophistication

Cultural significance

In digital color settings the shade carries local references, so verify its symbolism before a campaign.

Positive associations

Positive associations lean toward stability, neutrality and sophistication, which is why it appears in invitations and seasonal work.

Use with care

Too much surface area can read as indifference or gloom when left unrelieved, so keep it to accents and small fields.

Where it appears

Common design applications

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

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

Trend signal
Quiet structure, clear precision

Grey is the color of interval and infrastructure, holding other hues apart without competing. Warm greys feel tactile; cool greys feel engineered.

Pairing

Colors that complete it

History

Pigments and provenance

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

Tags

neutralprecisestructuredquietprofessionalstabilityneutrality and sophisticationGrey

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% #434343
10% #3C3C3C
20% #363636
30% #2F2F2F
40% #282828
50% #222222
60% #1B1B1B
70% #141414
80% #0D0D0D
90% #070707
100% #000000

Tints

Lighter steps for surfaces and backgrounds.

0% #434343
10% #565656
20% #696969
30% #7B7B7B
40% #8E8E8E
50% #A1A1A1
60% #B4B4B4
70% #C7C7C7
80% #D9D9D9
90% #ECECEC
100% #FFFFFF

Design scale 50–950

50#F5F5F5100#EDEDED200#D9D9D9300#C2C2C2400#A9A9A9500#8A8A8A600#737373700#5C5C5C800#464646900#313131950#202020
Dark-mode value (AA): #7D7D7D · 4.58:1

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

黯 KR ΔE 0.030
鸦青 CN ΔE 0.033
焦茶 JP ΔE 0.046
Show all (6)
Coklat ID ΔE 0.070
藏蓝 TB ΔE 0.100
Хар MN ΔE 0.113
नील IN ΔE 0.122
สีคราม TH ΔE 0.125
Lam VN ΔE 0.153

Design systems

Neutral 700 Tailwind ΔE 0.011
Neutral 700 UnoCSS ΔE 0.011
Neutral 700 Panda ΔE 0.011
Show all (11)
Grey 7 Ant Design ΔE 0.011
Neutral 30 Material ΔE 0.019
Gray 14 Polaris ΔE 0.026
Gray 800 Bootstrap ΔE 0.040
Gray 800 Open Color ΔE 0.040
Teal 800 Chakra ΔE 0.050
Yellow 12 Radix ΔE 0.052
Teams 30 Fluent ΔE 0.077
Foreground muted Primer ΔE 0.114
Secondary StyleX ΔE 0.217
Brand (default) vanilla-extract ΔE 0.335

RAL Classic

Grey olive · RAL 6006 RAL ΔE 0.015
Try any color

Can three steps of one hue work together

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

200#D9D9D9
500#8A8A8A
800#464646
  • 200 ↔ 500: 2.45:1 (FAIL)
  • 500 ↔ 800: 2.73:1 (FAIL)
  • 200 ↔ 800: 6.69:1 (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 1.33:1 and 2.24:1. 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.

Best use: Calls to action and single-feature highlights

Split-complementary

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

Best use: Balanced marketing layouts with two accents

Triadic

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

Best use: Event identities and playful editorial spreads

Analogous

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

Best use: Backgrounds, charts and calm product pages

Monochromatic

One hue across lightness steps; disciplined and premium.

#303030#434343#787878

Best use: Design systems, packaging and typographic hierarchy

Tetradic

Two complementary pairs; rich, but requires strict proportion.

Best use: Complex dashboards and multi-service brands

Export the scale

CSS

:root {
  --brand-50: #F5F5F5;
  --brand-100: #EDEDED;
  --brand-200: #D9D9D9;
  --brand-300: #C2C2C2;
  --brand-400: #A9A9A9;
  --brand-500: #8A8A8A;
  --brand-600: #737373;
  --brand-700: #5C5C5C;
  --brand-800: #464646;
  --brand-900: #313131;
  --brand-950: #202020;
}

Tailwind

theme: {
  extend: {
    colors: {
      brand: {
        50: '#F5F5F5',
        100: '#EDEDED',
        200: '#D9D9D9',
        300: '#C2C2C2',
        400: '#A9A9A9',
        500: '#8A8A8A',
        600: '#737373',
        700: '#5C5C5C',
        800: '#464646',
        900: '#313131',
        950: '#202020',
      },
    },
  },
}

Figma

{
  "brand": {
    "50": {
      "$type": "color",
      "$value": "#F5F5F5"
    },
    "100": {
      "$type": "color",
      "$value": "#EDEDED"
    },
    "200": {
      "$type": "color",
      "$value": "#D9D9D9"
    },
    "300": {
      "$type": "color",
      "$value": "#C2C2C2"
    },
    "400": {
      "$type": "color",
      "$value": "#A9A9A9"
    },
    "500": {
      "$type": "color",
      "$value": "#8A8A8A"
    },
    "600": {
      "$type": "color",
      "$value": "#737373"
    },
    "700": {
      "$type": "color",
      "$value": "#5C5C5C"
    },
    "800": {
      "$type": "color",
      "$value": "#464646"
    },
    "900": {
      "$type": "color",
      "$value": "#313131"
    },
    "950": {
      "$type": "color",
      "$value": "#202020"
    }
  }
}

SVG

<svg xmlns="http://www.w3.org/2000/svg" width="1100" height="120">
  <rect x="0" y="0" width="100" height="90" fill="#F5F5F5"/>
  <rect x="100" y="0" width="100" height="90" fill="#EDEDED"/>
  <rect x="200" y="0" width="100" height="90" fill="#D9D9D9"/>
  <rect x="300" y="0" width="100" height="90" fill="#C2C2C2"/>
  <rect x="400" y="0" width="100" height="90" fill="#A9A9A9"/>
  <rect x="500" y="0" width="100" height="90" fill="#8A8A8A"/>
  <rect x="600" y="0" width="100" height="90" fill="#737373"/>
  <rect x="700" y="0" width="100" height="90" fill="#5C5C5C"/>
  <rect x="800" y="0" width="100" height="90" fill="#464646"/>
  <rect x="900" y="0" width="100" height="90" fill="#313131"/>
  <rect x="1000" y="0" width="100" height="90" fill="#202020"/>
  <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: 0.961, green: 0.961, blue: 0.961, alpha: 1.0)
  static let brand100 = UIColor(red: 0.929, green: 0.929, blue: 0.929, alpha: 1.0)
  static let brand200 = UIColor(red: 0.851, green: 0.851, blue: 0.851, alpha: 1.0)
  static let brand300 = UIColor(red: 0.761, green: 0.761, blue: 0.761, alpha: 1.0)
  static let brand400 = UIColor(red: 0.663, green: 0.663, blue: 0.663, alpha: 1.0)
  static let brand500 = UIColor(red: 0.541, green: 0.541, blue: 0.541, alpha: 1.0)
  static let brand600 = UIColor(red: 0.451, green: 0.451, blue: 0.451, alpha: 1.0)
  static let brand700 = UIColor(red: 0.361, green: 0.361, blue: 0.361, alpha: 1.0)
  static let brand800 = UIColor(red: 0.275, green: 0.275, blue: 0.275, alpha: 1.0)
  static let brand900 = UIColor(red: 0.192, green: 0.192, blue: 0.192, alpha: 1.0)
  static let brand950 = UIColor(red: 0.125, green: 0.125, blue: 0.125, alpha: 1.0)
}

Android

<resources>
  <color name="brand_50">#F5F5F5</color>
  <color name="brand_100">#EDEDED</color>
  <color name="brand_200">#D9D9D9</color>
  <color name="brand_300">#C2C2C2</color>
  <color name="brand_400">#A9A9A9</color>
  <color name="brand_500">#8A8A8A</color>
  <color name="brand_600">#737373</color>
  <color name="brand_700">#5C5C5C</color>
  <color name="brand_800">#464646</color>
  <color name="brand_900">#313131</color>
  <color name="brand_950">#202020</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.

9.89 :1
AAA
Quote

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

WCAG contrast
Preview
Aa / Bb
#434343 · Charcoal

WCAG contrast standards

WCAG 2.2 sets minimum contrast for text and interface parts. #434343 measures 9.89:1 against white (AAA) and 1.91:1 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
#434343

CSS Color 4

RGB
67,67,67

sRGB / D65

HSL
0,0,26

HSL

OKLCH
oklch(0.383 0.000 89.9)

perceptual

LAB
28,0,0

CIE Lab

LCH
28,0,158

CIE LCH

XYZ
5,6,6

CIE XYZ

LUV
28,0,0

CIE LUV

HWB
0,26,74

CSS HWB

CMYK
0,0,0,74

print

Practical formats

Ready-to-use values

CSS
color: #434343;

custom properties

Tailwind
bg-[#434343] text-[#FFF]

arbitrary value

Android
#FF434343

ARGB

Flutter
Color(0xFF434343)

dart:ui

Photoshop
R 67 G 67 B 67 · C 0 M 0 Y 0 K 74

RGB / CMYK

Print
CMYK 0,0,0,74

FOGRA39

Color analysis

Measured color properties

Lightness
0.056

relative luminance · warm

Contrast
9.89 : 1

vs white · AAA · warm

Contrast
1.91 : 1

vs black · FAIL · warm

Hue
0°

saturation 0% · warm

LCH
28,0,158

lightness 26% · warm

Delta E
5.5

玄色 #3A3A40 · warm

Blindness simulator

How it reads with color vision deficiency

How it reads with color vision deficiency · ΔE 5.5

Creative aspects

Culture, mood and story

Mood
neutral, precise, structured, quiet, professional

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

Family
Grey · oklch(0.383 0.000 89.9)

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
Quiet structure, clear precision

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

Inspired by
digital color

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

Frequently asked questions

What color is #434343?
Charcoal is #434343, or #434343 in uppercase notation. In RGB it is rgb(67,67,67), in HSL about hsl(0 0% 26%), and in OKLCH oklch(0.383 0.000 89.9).
How should I use Charcoal in design?
Give it one focal element, keep body copy neutral and confirm contrast at 9.89 against white and 1.91 against black.
Is Charcoal accessible?
Contrast is 9.89 against white (AAA) and 1.91 against black (FAIL). Use it for large text when the level reaches AA.