# #b21590

A color — warm, vivid, playful, bold. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#b21590`
- RGB: rgb(178, 21, 144)
- HSL: hsl(313, 79%, 39%)
- OKLCH: oklch(0.522 0.216 339.7)
- Relative luminance: 0.1201
- Nearest named color: Jealous Jellyfish (#bb0099, Δ 2.287) — https://brandsweets.com/colors/jealous-jellyfish
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/b21590

## Tints & shades

- Tints (toward white): #cd18a6, #e51fba, #e83bc2, #eb56cb, #ee72d3, #f188da, #f4a4e3, #f8bfeb, #fbdaf4, #fef6fc
- Shades (toward black): #a41385, #921176, #84106b, #720d5c, #640c51, #520a42, #440837, #320629, #25041e, #12020f

## Harmonies

- Complementary: #15b237
- Analogous: #8515b2, #b21541
- Triadic: #90b215, #1590b2
- Split-complementary: #41b215, #15b285
- Tetradic: #b28515, #15b237, #1541b2

## Colors that go with #b21590

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

- **Denim** #1560bd [pool] — Designers have shipped Denim with #b21590: 4 real palettes, including Peacock and Hasbro's brand system, as the supporting colour. Seen in: Peacock (https://brandsweets.com/palettes/vivid#peacock), Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Chase (https://brandsweets.com/colors/brands/chase-com), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com). — https://brandsweets.com/colors/denim
- **Sea Green** #2e8b57 [harmony: complementary] — Sea Green sits directly opposite #b21590 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/seagreen
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #b21590: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/charcoal
- **Teal** #008080 [harmony: split] — Teal is a split-complement of #b21590: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/teal
- **Olive Drab** #6b8e23 [harmony: split] — Olive Drab is a split-complement of #b21590: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olivedrab
- **Crimson** #dc143c [harmony, pool: analogous] — Crimson is #b21590's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: The Ordinary (https://brandsweets.com/colors/brands/theordinary-com). — https://brandsweets.com/colors/crimson
- **Orange** #ffa500 [pool] — Two real palettes: Rippling's brand system and Sunset Boulevard put Orange beside #b21590, as the lead colour. Seen in: Rippling (https://brandsweets.com/colors/brands/rippling-com), Sunset Boulevard (https://brandsweets.com/palettes/warm#sunset-boulevard). — https://brandsweets.com/colors/orange
- **Olive Green** #808000 [harmony: triadic] — Olive Green completes a triad with #b21590 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. — https://brandsweets.com/colors/olive

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

- On white (#ffffff): 6.17:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #a01381 (7.23:1)
- On black (#000000): 3.4:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #d719ae (4.64:1); AA: background → #dedede (4.59:1); AAA: text → #ec5fce (7.09:1)

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- playful: https://brandsweets.com/fonts/mood/playful
- bold: https://brandsweets.com/fonts/mood/bold

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/b21590-c19fb5-7ecb62-2d1f24-efe9f1?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: "#b21590" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.