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A free, open-source tool for building perceptually even color scales. Computed in OKLCH: control steps, lightness/chroma curves, saturation, and per-step overrides. Wide-gamut P3. Export to Tailwind v4/v3, CSS variables, SCSS, or SVG. No signup — the palette lives in the URL.
Hey Product Hunt 👋
I built Color Lab because generating UI color scales where every step looks evenly spaced is harder than it should be. Doing the math in OKLCH fixes that — you reason about lightness and chroma independently, and the steps come out perceptually even.
What you can do:
• Set steps (3–21), shape lightness & chroma curves, clamp a lightness range
• Override individual steps when a scale needs a nudge
• Toggle OKLCH/sRGB, render in wide-gamut P3
• Export to Tailwind v4/v3, CSS variables, SCSS, or SVG
• Share any palette as a link — the whole thing is encoded in the URL
It's free, no sign-up required, and open source (MIT). It's the UI on top of colorizr, a color
library I maintain, so if you'd rather stay in code, you can use that directly.
Try it: https://lab.colormeup.co/
Repo: https://github.com/gilbarbara/co...
I'll be around all day — would love your feedback, especially on the curve controls.
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About ColorMeUp Lab on Product Hunt
“OKLCH color scale generator for design systems”
ColorMeUp Lab was submitted on Product Hunt and earned 4 upvotes and 1 comments, placing #129 on the daily leaderboard. A free, open-source tool for building perceptually even color scales. Computed in OKLCH: control steps, lightness/chroma curves, saturation, and per-step overrides. Wide-gamut P3. Export to Tailwind v4/v3, CSS variables, SCSS, or SVG. No signup — the palette lives in the URL.
ColorMeUp Lab was featured in Design Tools (260.6k followers), Open Source (68.5k followers), Developer Tools (514k followers) and GitHub (41.3k followers) on Product Hunt. Together, these topics include over 146k products, making this a competitive space to launch in.
Who hunted ColorMeUp Lab?
ColorMeUp Lab was hunted by Gil Barbara. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how ColorMeUp Lab stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Gil Barbara