# #cd21e4

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

## Values

- Hex: `#cd21e4`
- RGB: rgb(205, 33, 228)
- HSL: hsl(293, 78%, 51%)
- OKLCH: oklch(0.619 0.277 322.3)
- Relative luminance: 0.1967
- Nearest named color: Drunk-Tank Pink (#dd11dd, Δ 3.349) — https://brandsweets.com/colors/drunk-tank-pink
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/cd21e4

## Tints & shades

- Tints (toward white): #d237e6, #d649e9, #db60eb, #e077ee, #e58ef1, #e9a0f3, #efb6f6, #f4cdf9, #f8dffb, #fdf6fe
- Shades (toward black): #bb1ad1, #ab18bf, #9715a8, #821291, #72107f, #5e0d68, #490a52, #35073b, #250529, #100212

## Harmonies

- Complementary: #37e421
- Analogous: #6b21e4, #e42199
- Triadic: #e4cd21, #21e4cd
- Split-complementary: #99e421, #21e46b
- Tetradic: #e46b21, #37e421, #2199e4

## Colors that go with #cd21e4

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 #cd21e4 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
- **Dark Cyan** #008b8b [harmony, pool: split] — Dark Cyan is a split-complement of #cd21e4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock). — https://brandsweets.com/colors/darkcyan
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #cd21e4: 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
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #cd21e4: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Crimson** #dc143c [pool] — Crimson is paired with #cd21e4 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 #cd21e4: 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 #cd21e4 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/darkgoldenrod
- **Medium Slate Blue** #7b68ee [harmony: analogous] — Medium Slate Blue is #cd21e4's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. — https://brandsweets.com/colors/mediumslateblue

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

- On white (#ffffff): 4.26:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #c41bda (4.65:1); AA: background → #0f0f0f (4.5:1); AAA: text → #9715a8 (7.03:1)
- On black (#000000): 4.93:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #dc65ec (7.12:1)

## 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/cd21e4-c19fc1-a1cb62-2d1f29-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: "#cd21e4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.