AV-W06
Colour Converter & Contrast
Convert colours between HEX, RGB, HSL, HWB, LAB, LCH and OKLCH, and check WCAG and APCA contrast.
● Runs on your device; nothing is uploadedHow to use it
- Type any CSS colour into Colour, or choose one with the Picker.
- Copy the HEX, RGB, HSL, HWB, LAB, LCH, OKLAB or OKLCH value you need.
- Set the Text / foreground and Background colours in the Contrast checker.
- Read the WCAG 2.x results and APCA Lc; click Swap colours to reverse them.
Limits
- Colour input
- 200 characters
Features
- Converts to nine formats, including HEX with alpha
- Warns when a colour is outside sRGB and shows the nearest match
- WCAG AA and AAA checks for normal text, large text and UI parts
- APCA Lc score with guidance on where it can be used
- Blends translucent text over the background before measuring
For AI agents: avtools_colour_converter
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