# #b581df

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

## Values

- Hex: `#b581df`
- RGB: rgb(181, 129, 223)
- HSL: hsl(273, 59%, 69%)
- OKLCH: oklch(0.691 0.144 308.5)
- Relative luminance: 0.3085
- Nearest named color: Lavender (#b56edc, Δ 4.352) — https://brandsweets.com/colors/lavender-2
- Moods: cool, modern
- Page: https://brandsweets.com/colors/b581df

## Tints & shades

- Tints (toward white): #bc8de2, #c39ae5, #caa6e8, #d1b2eb, #d9beee, #ddc6f0, #e5d2f3, #ecdff7, #f3ebfa, #faf7fd
- Shades (toward black): #a669d8, #954dd1, #8734cb, #742dae, #642796, #511f7a, #411961, #2e1245, #1e0c2d, #0b0410

## Harmonies

- Complementary: #abdf81
- Analogous: #8681df, #df81da
- Triadic: #dfb581, #81dfb5
- Split-complementary: #dadf81, #81df86
- Tetradic: #df8681, #abdf81, #81dadf

## Colors that go with #b581df

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 #b581df 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). — https://brandsweets.com/colors/mediumseagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #b581df 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 #b581df: 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
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #b581df in 3 real palettes, including Loom's brand system and Sephora's brand system, as the lead colour. Seen in: Loom (https://brandsweets.com/colors/brands/loom-com), Sephora (https://brandsweets.com/colors/brands/sephora-com), Roblox (https://brandsweets.com/colors/brands/roblox-com). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #b581df 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
- **Light Sea Green** #20b2aa [harmony, pool: triadic] — Light Sea Green completes a triad with #b581df — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Netlify (https://brandsweets.com/colors/brands/netlify-com). — https://brandsweets.com/colors/lightseagreen
- **Dark Goldenrod** #b8860b [harmony: split] — Dark Goldenrod is a split-complement of #b581df: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/darkgoldenrod
- **Blue** #0000ff [pool] — Two real palettes: Canva's brand system and Spotify's brand system put Blue beside #b581df, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 2.93:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9a55d3 (4.55:1); AA: background → #303030 (4.51:1); AAA: text → #7c30bb (7.01:1); AAA: background → #030303 (7.04:1)
- On black (#000000): 7.17:1 — 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/b581df-b79cc4-c4cb62-2d1f2d-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: "#b581df" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.