Irodori彩り

Mass conversion

Batch convert a list of colors

About Mass conversion

Batch convert a list of colors

How to use

Convert a pigment mass or density into its color weight for printing and paint mixing, and back again.

Mass conversion

How it works

1

Enter or pick a color

Type a HEX, RGB, HSL, OKLCH or Lab value, or use the color picker.

2

Adjust and preview

Change the inputs and watch every value update in real time.

3

Copy the result

Copy any format with one click and paste it into your code or design tool.

About this tool

All calculations use standard color-space formulas with a D65 white point. OKLCH and Lab results are perceptual, so the numbers describe how the color actually looks rather than how a particular screen happens to render it.

  • All calculations in your browser
  • WCAG accessibility by default
  • OKLCH / Lab / LCH ready