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Color Converter

Hex ↔ RGB ↔ HSL conversion with relative luminance.

Convert a color between hex, RGB, and HSL representations and read its relative luminance for accessibility.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Standard sRGB ↔ HSL conversion. Relative luminance follows the WCAG 2.x formula for use in contrast-ratio calculations.

In depth

Convert a color between hex, RGB, and HSL representations and read its relative luminance for accessibility.