# #b181bb

A color — cool, muted. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#b181bb`
- RGB: rgb(177, 129, 187)
- HSL: hsl(290, 30%, 62%)
- OKLCH: oklch(0.67 0.099 320.5)
- Relative luminance: 0.2864
- Nearest named color: Berries Galore (#ab7cb4, Δ 1.827) — https://brandsweets.com/colors/berries-galore
- Moods: cool, muted
- Page: https://brandsweets.com/colors/b181bb

## Tints & shades

- Tints (toward white): #ba8ec2, #c098c8, #c8a5cf, #ceafd4, #d6bddb, #decae2, #e4d4e8, #ede1ef, #f3ebf4, #fbf8fb
- Shades (toward black): #a56db0, #9959a6, #8a5095, #774681, #653b6d, #53305a, #402546, #311d35, #1f1221, #0c070d

## Harmonies

- Complementary: #8bbb81
- Analogous: #9481bb, #bb81a8
- Triadic: #bbb181, #81bbb1
- Split-complementary: #a8bb81, #81bb94
- Tetradic: #bb9481, #8bbb81, #81a8bb

## Colors that go with #b181bb

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

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #b181bb: softer than #000 and cool enough to feel like part of the same palette. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Dusty Blue (https://brandsweets.com/palettes/cool#dusty-blue), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Hermès (https://brandsweets.com/colors/brands/hermes-com). — https://brandsweets.com/colors/charcoal
- **Medium Sea Green** #3cb371 [harmony, pool: complementary] — Medium Sea Green sits directly opposite #b181bb on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Spotify (https://brandsweets.com/colors/brands/spotify), Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/mediumseagreen
- **Emerald Green** #50c878 [pool] — Emerald Green is paired with #b181bb in 5 real palettes, including Ledger Dark and Obsidian's brand system, as the accent. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Scale AI (https://brandsweets.com/colors/brands/scale-com), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/emerald-green
- **Midnight Blue** #191970 [pool] — 4 real palettes, including Open House and Plaid's brand system put Midnight Blue beside #b181bb, as the text colour against it. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), Plaid (https://brandsweets.com/colors/brands/plaid-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), Lavender Haze (https://brandsweets.com/palettes/playful#lavender-haze). — https://brandsweets.com/colors/midnightblue
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #b181bb: 4 real palettes, including Ink Wash and Crypto.com's brand system, as the lead colour. Seen in: Ink Wash (https://brandsweets.com/palettes/dark#ink-wash), Crypto.com (https://brandsweets.com/colors/brands/crypto-com), First Snow (https://brandsweets.com/palettes/cool#first-snow), Stone (https://brandsweets.com/palettes/neutral#stone). — https://brandsweets.com/colors/powderblue
- **Taupe** #483c32 [pool] — Taupe is paired with #b181bb in 11 real palettes, including Dusk and Obsidian's brand system, as the text colour against it. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Stone (https://brandsweets.com/palettes/neutral#stone), Typewriter (https://brandsweets.com/palettes/editorial#typewriter). — https://brandsweets.com/colors/taupe
- **Amber** #ffbf00 [pool] — Amber is paired with #b181bb in 3 real palettes, including Blueprint and Ahrefs's brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/amber
- **Copper** #b87333 [pool] — Designers have shipped Copper with #b181bb: 3 real palettes, including Dusk and Atelier, as the accent. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Atelier (https://brandsweets.com/palettes/elegant#atelier), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper

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

- On white (#ffffff): 3.12:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #9b5da8 (4.64:1); AA: background → #2b2b2b (4.54:1); AAA: text → #774681 (7.05:1)
- On black (#000000): 6.73:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #b688bf (7.26:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/b181bb-bf9fc1-a6cb62-2d1f29-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: "#b181bb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.