About OKLCH Color Picker & Converter
OKLCH Color Picker & Converter is a web tool for picking colours and converting them between formats. It focuses on OKLCH, a colour model that aims to match how people perceive lightness and hue.
What it does
You can paste a hex, RGB or HSL value and see the same colour in OKLCH, LCH, LAB and other formats. The tool also shows colours in wider gamuts such as Display P3 and Rec2020. A 3D view and graphs help you see how lightness, chroma and hue change across a palette.
Key features
- Convert hex, RGB, HSL, LCH and OKLCH values
- Paste a value to convert it instantly
- Show colours in P3 and Rec2020 gamuts
- Visualise palettes with 3D views and graphs
Who it's for
The tool suits front-end developers, designers and anyone building a colour system with CSS. It is useful when you want consistent lightness across a palette and need to see how a colour looks outside standard sRGB.
Pricing and good to know
The listing does not state pricing, and the tool runs in the browser. It is made by a development consultancy, Evil Martians, and the page explains the reasons for using OKLCH. Wide-gamut colours only show fully on screens that support them, so test your palette on the devices your users have.
Highlights
- Convert hex, RGB and HSL to OKLCH and other formats
- Paste any colour value to see its conversions
- Show colours in P3 and Rec2020 colour spaces
- Adjust lightness, chroma and hue with sliders
