OKLCH to LAB
Color Convert Engine
Enter a color in any supported format; the engine outputs every other color space.
Input Mode
Accepts #RGB or #RRGGBB, with or without #.
Preview
#1E40AF
Preview uses the sRGB color space.
Output — all color spaces
How to use
- Enter OKLCH triplets as from CSS-oriented palettes or generators, watch chroma rolloff near neutrals, then validate neutrals against pure grayscale references.
- Very low chroma hues can jitter numerically—toggle hue slightly if neutrals look tinted.
- Confirm semantic tokens (background, border, text) at multiple contrast pairs after conversion.
FAQ
What is OKLCH to LAB used for?
OKLCH to LAB is used when your source color is expressed as OKLCH cylindrical coordinates (lightness, chroma, hue) aligned with OKLAB but your destination expects CIELAB coordinates (`L*`, `a*`, `b*`) used for perceptual comparisons—common when aligning design tools, CSS, print specs, or APIs.
Is my data uploaded?
No. Processing runs locally in your browser.
Does OKLCH match CSS `oklch()`?
Values map to the same conceptual model; always verify in target browsers when adopting newer CSS color functions.
Introduction
OKLCH expresses OKLAB as lightness, chroma, and hue—closely aligned with how CSS oklch() parametrizes modern, wide-gamut design tokens. That is what we treat as the from (OKLCH) color encoding on this page.
CIELAB (L*, a*, b*) measures lightness plus green–red and blue–yellow opponent axes in a space designed for perceptually even spacing between colors. That is the to (LAB) encoding you get after conversion.
A OKLCH to LAB converter bridges them when your pipeline outputs OKLCH but the next step expects LAB—without redoing the coordinate math by hand.
What is OKLCH to LAB?
OKLCH to LAB maps colors described in OKLCH cylindrical coordinates (lightness, chroma, hue) aligned with OKLAB into CIELAB coordinates (L*, a*, b*) used for perceptual comparisons. The perceptual aim is the same color expressed with different coordinates—ideal when downstream systems disagree on notation.
Key Features
Fast conversion helps when you are juggling OKLCH inputs against LAB consumers in the same sprint.
Live preview catches transcription mistakes early, especially when channels have different ranges or units.
Copy-ready output reduces slack-and-paste errors moving from spreadsheets or PDF specs into code.
Common Use Cases
- Shipping UI tokens where APIs expose OKLCH but theme files require LAB.
- Preparing brand palettes for mixed pipelines—web RGB alongside print CMYK or perceptual LAB QA.
- Debugging divergent pickers by exporting one canonical mix and re-importing it elsewhere.
Best Practices
- Normalize inputs (confirm units and ranges) before trusting downstream diffs.
- Compare previews on both light and dark chrome when contrast ratios matter for accessibility.
- Bookmark the inverse LAB to OKLCH when you frequently round-trip edits.
Related tools
These complement OKLCH to LAB when you are iterating palettes under real UI constraints:
- Color Converter — Jump to any supported pair from the suite hub.
- LAB to OKLCH — Reverse direction when edits bounce between teams.
- OKLCH to HEX — Nearby conversion from the same OKLCH source when you need another output format.
- Color Picker — Dial or sample a color visually, then route it through the converter chain.