# #b581c5

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

## Values

- Hex: `#b581c5`
- RGB: rgb(181, 129, 197)
- HSL: hsl(286, 37%, 64%)
- OKLCH: oklch(0.679 0.113 318)
- Relative luminance: 0.2956
- Nearest named color: Berries Galore (#ab7cb4, Δ 3.137) — https://brandsweets.com/colors/berries-galore
- Moods: cool, modern
- Page: https://brandsweets.com/colors/b581c5

## Tints & shades

- Tints (toward white): #bb8cca, #c49ad0, #caa4d5, #d2b2dc, #d8bde0, #dec7e5, #e6d5ec, #ede0f1, #f5eef7, #fbf8fc
- Shades (toward black): #a96cbc, #9d57b2, #8c4aa1, #7a408c, #683777, #552d62, #43234d, #311a38, #1f1023, #0c060e

## Harmonies

- Complementary: #91c581
- Analogous: #9381c5, #c581b3
- Triadic: #c5b581, #81c5b5
- Split-complementary: #b3c581, #81c593
- Tetradic: #c59381, #91c581, #81b3c5

## Colors that go with #b581c5

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 #b581c5: 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), Auth0 (https://brandsweets.com/colors/brands/auth0-com), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com). — https://brandsweets.com/colors/charcoal
- **Medium Sea Green** #3cb371 [harmony, pool: complementary] — Medium Sea Green sits directly opposite #b581c5 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 #b581c5 in 4 real palettes, including Obsidian's brand system and Ledger Dark, as the accent. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Supabase (https://brandsweets.com/colors/brands/supabase), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/emerald-green
- **Midnight Blue** #191970 [pool] — 4 real palettes, including Open House and Lavender Haze put Midnight Blue beside #b581c5, as the text colour against it. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), Lavender Haze (https://brandsweets.com/palettes/playful#lavender-haze), First Snow (https://brandsweets.com/palettes/cool#first-snow), Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/midnightblue
- **Taupe** #483c32 [pool] — Taupe is paired with #b581c5 in 4 real palettes, including Obsidian's brand system and Dusk, as the text colour against it. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Dusk (https://brandsweets.com/palettes/cool#dusk), Loom (https://brandsweets.com/colors/brands/loom-com), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/taupe
- **Amber** #ffbf00 [pool] — Amber is paired with #b581c5 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
- **Cornflower Blue** #6495ed [harmony, pool: analogous] — Cornflower Blue is #b581c5's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Arctic (https://brandsweets.com/palettes/clean#arctic), Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/cornflowerblue
- **Medium Slate Blue** #7b68ee [pool] — Medium Slate Blue shows up next to #b581c5 in 3 real palettes, including Obsidian's brand system and Mastodon hosted on mastodon.social's brand system, as the supporting colour. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Lavender Haze (https://brandsweets.com/palettes/playful#lavender-haze). — https://brandsweets.com/colors/mediumslateblue

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

- On white (#ffffff): 3.04:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #9f5bb3 (4.54:1); AA: background → #2b2b2b (4.66:1); AAA: text → #7a408c (7.14:1)
- On black (#000000): 6.91:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #b785c7 (7.19:1)

## Fonts for this mood

- 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/b581c5-bd9fc1-adcb62-2d1f2a-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: "#b581c5" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.