# #b581d5

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

## Values

- Hex: `#b581d5`
- RGB: rgb(181, 129, 213)
- HSL: hsl(277, 50%, 67%)
- OKLCH: oklch(0.686 0.132 311.7)
- Relative luminance: 0.3033
- Nearest named color: Lavendless (#b86fc2, Δ 4.521) — https://brandsweets.com/colors/lavendless
- Moods: cool, modern
- Page: https://brandsweets.com/colors/b581d5

## Tints & shades

- Tints (toward white): #bb8cd9, #c298dd, #c9a3e0, #d0afe4, #d9bee9, #dfc9ed, #e6d5f1, #ede0f5, #f4ecf9, #faf7fc
- Shades (toward black): #a76acd, #974fc4, #893db8, #7836a1, #672e8a, #53256f, #411d58, #301641, #1c0d26, #0b050f

## Harmonies

- Complementary: #a1d581
- Analogous: #8b81d5, #d581cb
- Triadic: #d5b581, #81d5b5
- Split-complementary: #cbd581, #81d58b
- Tetradic: #d58b81, #a1d581, #81cbd5

## Colors that go with #b581d5

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

- **Medium Sea Green** #3cb371 [harmony, pool: complementary] — Medium Sea Green sits directly opposite #b581d5 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
- **Light Sea Green** #20b2aa [harmony, pool: split] — Light Sea Green is a split-complement of #b581d5: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Netlify (https://brandsweets.com/colors/brands/netlify-com). — https://brandsweets.com/colors/lightseagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #b581d5 in 3 real palettes, including Blueprint and Mastodon hosted on mastodon.social's brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #b581d5: softer than #000 and cool enough to feel like part of the same palette. Seen in: Auth0 (https://brandsweets.com/colors/brands/auth0-com). — https://brandsweets.com/colors/charcoal
- **Medium Slate Blue** #7b68ee [pool] — Medium Slate Blue shows up next to #b581d5 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
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #b581d5 in 3 real palettes, including Sephora's brand system and Loom's brand system, as the supporting colour. Seen in: Sephora (https://brandsweets.com/colors/brands/sephora-com), Loom (https://brandsweets.com/colors/brands/loom-com), Roblox (https://brandsweets.com/colors/brands/roblox-com). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #b581d5 in 3 real palettes, including Obsidian's brand system and Loom's brand system, as the text colour against it. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Loom (https://brandsweets.com/colors/brands/loom-com), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/taupe
- **Dark Goldenrod** #b8860b [harmony: split] — Dark Goldenrod is a split-complement of #b581d5: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/darkgoldenrod

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

- On white (#ffffff): 2.97:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9c57c7 (4.56:1); AA: background → #2e2e2e (4.57:1); AAA: text → #7a37a4 (7.22:1); AAA: background → #000000 (7.07:1)
- On black (#000000): 7.07:1 — AA pass, AA-large pass, AAA pass

## 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/b581d5-b99cc4-bdcb62-2d1f2c-eae9f1?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: "#b581d5" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.