# #ca21e4

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

## Values

- Hex: `#ca21e4`
- RGB: rgb(202, 33, 228)
- HSL: hsl(292, 78%, 51%)
- OKLCH: oklch(0.614 0.276 321.5)
- Relative luminance: 0.1925
- Nearest named color: Drunk-Tank Pink (#dd11dd, Δ 3.907) — https://brandsweets.com/colors/drunk-tank-pink
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/ca21e4

## Tints & shades

- Tints (toward white): #cf37e6, #d349e9, #d960eb, #de77ee, #e48ef1, #e8a0f3, #eeb6f6, #f3cdf9, #f7dffb, #fdf6fe
- Shades (toward black): #b81ad1, #a818bf, #9415a8, #801291, #70107f, #5c0d68, #480a52, #34073b, #240529, #100212

## Harmonies

- Complementary: #3be421
- Analogous: #6821e4, #e4219c
- Triadic: #e4ca21, #21e4ca
- Split-complementary: #9ce421, #21e468
- Tetradic: #e46821, #3be421, #219ce4

## Colors that go with #ca21e4

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 #ca21e4 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 #ca21e4: 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 #ca21e4 — 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 #ca21e4: 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 #ca21e4: 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 #ca21e4'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
- **Crimson** #dc143c [pool] — Crimson is paired with #ca21e4 in two real palettes: Snyk's brand system and The Ordinary's brand system, as the lead colour. Seen in: Snyk (https://brandsweets.com/colors/brands/snyk-io), The Ordinary (https://brandsweets.com/colors/brands/theordinary-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #ca21e4: 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

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

- On white (#ffffff): 4.33:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #c41bde (4.61:1); AA: background → #0a0a0a (4.57:1); AAA: text → #9415a8 (7.16:1)
- On black (#000000): 4.85:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #da65ec (7.05:1)

## 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/ca21e4-c09fc1-a3cb62-2d1f29-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: "#ca21e4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.