# #ca21e8

A color — cool, vivid, technical, modern. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#ca21e8`
- RGB: rgb(202, 33, 232)
- HSL: hsl(291, 81%, 52%)
- OKLCH: oklch(0.617 0.279 320.6)
- Relative luminance: 0.1947
- Nearest named color: Flirtatious Flamingo (#cc22ff, Δ 3.44) — https://brandsweets.com/colors/flirtatious-flamingo
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/ca21e8

## Tints & shades

- Tints (toward white): #d039ea, #d44bec, #d962ef, #de75f0, #e38cf3, #e9a3f5, #edb5f7, #f3ccfa, #f7dffc, #fdf6fe
- Shades (toward black): #bc17d9, #a814c2, #9812af, #841098, #700e81, #5c0b6a, #480953, #380741, #24042a, #100212

## Harmonies

- Complementary: #3fe821
- Analogous: #6721e8, #e821a2
- Triadic: #e8ca21, #21e8ca
- Split-complementary: #a2e821, #21e867
- Tetradic: #e86721, #3fe821, #21a2e8

## Colors that go with #ca21e8

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Forest Green** #228b22 [harmony: complementary] — Forest Green sits directly opposite #ca21e8 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/forestgreen
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #ca21e8: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/charcoal
- **Dark Cyan** #008b8b [harmony, pool: triadic] — Dark Cyan completes a triad with #ca21e8 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock). — https://brandsweets.com/colors/darkcyan
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #ca21e8: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Sea Green** #2e8b57 [harmony: split] — Sea Green is a split-complement of #ca21e8: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/seagreen
- **Medium Slate Blue** #7b68ee [harmony, pool: analogous] — Medium Slate Blue is #ca21e8's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: monday.com (https://brandsweets.com/colors/brands/monday-com). — https://brandsweets.com/colors/mediumslateblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #ca21e8: two real palettes: Hasbro's brand system and Peacock, as the supporting colour. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Peacock (https://brandsweets.com/palettes/vivid#peacock). — https://brandsweets.com/colors/denim
- **Dark Goldenrod** #b8860b [harmony: triadic] — Dark Goldenrod completes a triad with #ca21e8 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/darkgoldenrod

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 4.29:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #c418e2 (4.59:1); AA: background → #0d0d0d (4.53:1); AAA: text → #9412ab (7.16:1)
- On black (#000000): 4.89:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #db67ef (7.2:1)

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/ca21e8-bf9fc1-a4cb62-2d1f29-ece9f1?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#ca21e8" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.