# #b21576

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

## Values

- Hex: `#b21576`
- RGB: rgb(178, 21, 118)
- HSL: hsl(323, 79%, 39%)
- OKLCH: oklch(0.51 0.202 350)
- Relative luminance: 0.1131
- Nearest named color: King’s Plum Pie (#b3107a, Δ 0.78) — https://brandsweets.com/colors/kings-plum-pie
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/b21576

## Tints & shades

- Tints (toward white): #cd1888, #e51f99, #e83ba6, #eb56b2, #ee72bf, #f188c9, #f4a4d5, #f8bfe2, #fbdaee, #fef6fb
- Shades (toward black): #a4136d, #921161, #841058, #720d4c, #640c42, #520a36, #44082d, #320621, #250418, #12020c

## Harmonies

- Complementary: #15b251
- Analogous: #a015b2, #b21527
- Triadic: #76b215, #1576b2
- Split-complementary: #27b215, #15b2a0
- Tetradic: #b2a015, #15b251, #1527b2

## Colors that go with #b21576

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 #b21576: 5 real palettes, including Chase's brand system and Ulta Beauty's brand system, as the lead colour. Seen in: Chase (https://brandsweets.com/colors/brands/chase-com), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com), Peacock (https://brandsweets.com/palettes/vivid#peacock), AT&T (https://brandsweets.com/colors/brands/att-com). — https://brandsweets.com/colors/denim
- **Sea Green** #2e8b57 [harmony: complementary] — Sea Green sits directly opposite #b21576 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
- **Forest Green** #228b22 [harmony, pool: split] — Forest Green is a split-complement of #b21576: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Bun (https://brandsweets.com/colors/brands/bun-sh). — https://brandsweets.com/colors/forestgreen
- **Crimson** #dc143c [harmony, pool: analogous] — Crimson is #b21576'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), Nintendo (https://brandsweets.com/colors/brands/nintendo-com). — https://brandsweets.com/colors/crimson
- **Taupe** #483c32 [pool] — Taupe is paired with #b21576 in 3 real palettes, including Dunkin''s brand system and AT&T's brand system, as the lead colour. Seen in: Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), AT&T (https://brandsweets.com/colors/brands/att-com), Tommy Hilfiger (https://brandsweets.com/colors/brands/tommy-com). — https://brandsweets.com/colors/taupe
- **Teal** #008080 [harmony: split] — Teal is a split-complement of #b21576: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/teal
- **Charcoal** #36454f [role] — Charcoal is the body-text near-black for #b21576: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. — https://brandsweets.com/colors/charcoal
- **Midnight Blue** #191970 [pool] — Two real palettes: MLB's brand system and Nintendo's brand system put Midnight Blue beside #b21576, as the lead colour. Seen in: MLB (https://brandsweets.com/colors/brands/mlb-com), Nintendo (https://brandsweets.com/colors/brands/nintendo-com). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 6.44:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #a4136d (7.26:1)
- On black (#000000): 3.26:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #db1a91 (4.57:1); AA: background → #d9d9d9 (4.56:1); AAA: text → #ed64b8 (7.12:1)

## 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/b21576-c19fb0-6dcb62-2d1f22-f0e9f1?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: "#b21576" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.