ColorArchive is now a Figma plugin — 5,446 colors, WCAG checks, brand scales

Shipped a milestone this week: ColorArchive (my curated color library, 5,446 colors) passed Figma's review and is live on Figma Community.

Why a plugin: distribution. The site gets ~100–250 PV/day from SEO, but designers live inside Figma. A Community listing is a discovery surface where the product demos itself — every install is a designer trying the library inside their actual workflow.

The launch version does: browse/search all 5,446 colors (48 hues × 14 lightness × 8 chroma + neutrals) · apply fills · create paint styles · generate 30-style brand scales from any fill · WCAG contrast badges for any selected layer · CSS/Tailwind/JSON export · works in FigJam too.

Build notes for anyone shipping a Figma plugin:

(1) The plugin UI iframe is a data: URL — localStorage always throws a SecurityError. One unguarded access killed our whole UI script and cost us a review cycle. Persist via figma.clientStorage on the main thread instead.

(2) Every code publish = a full re-review. Bundle your changes; listing text/images don't re-trigger review.

(3) Reviewers test FigJam even if your plugin is Design-first — gate editor-specific APIs (figma.createPaintStyle doesn't exist in FigJam).

Free plugin, Pro hook is palette sync via API key. UTM-tagged links so I can actually measure install → visit → signup → purchase in PostHog.

Plugin: https://www.figma.com/community/plugin/1616829363158218051

Ask: if you use Figma, an install + honest review helps the Community ranking a lot 🙏