# #b13581

A color — warm. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#b13581`
- RGB: rgb(177, 53, 129)
- HSL: hsl(323, 54%, 45%)
- OKLCH: oklch(0.536 0.177 347)
- Relative luminance: 0.1348
- Nearest named color: Fandango (#b53389, Δ 1.5) — https://brandsweets.com/colors/fandango
- Moods: warm
- Page: https://brandsweets.com/colors/b13581

## Tints & shades

- Tints (toward white): #c43b90, #cb529d, #d166a8, #d779b3, #de91c1, #e4a5cc, #eab8d7, #f0cce2, #f7e4ef, #fdf7fb
- Shades (toward black): #a13076, #912b6a, #82275f, #722253, #621d48, #4f1739, #3f132e, #2f0e22, #1f0917, #10050b

## Harmonies

- Complementary: #35b164
- Analogous: #a235b1, #b13543
- Triadic: #81b135, #3581b1
- Split-complementary: #43b135, #35b1a2
- Tetradic: #b1a235, #35b164, #3543b1

## Colors that go with #b13581

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 #b13581: 6 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), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/denim
- **Sea Green** #2e8b57 [harmony: complementary] — Sea Green sits directly opposite #b13581 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 #b13581: 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
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #b13581: 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
- **Crimson** #dc143c [harmony, pool: analogous] — Crimson is #b13581'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 #b13581 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 #b13581: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/teal
- **Midnight Blue** #191970 [pool] — Two real palettes: MLB's brand system and Nintendo's brand system put Midnight Blue beside #b13581, 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): 5.68:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #992e70 (7.05:1)
- On black (#000000): 3.7:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #c63f92 (4.53:1); AA: background → #e6e6e6 (4.55:1); AAA: text → #d676b1 (7.09:1)

## Fonts for this mood

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

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/b13581-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: "#b13581" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.