# #b181e4

A color — cool, vivid, light, technical, modern, clean. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#b181e4`
- RGB: rgb(177, 129, 228)
- HSL: hsl(269, 65%, 70%)
- OKLCH: oklch(0.689 0.148 305.2)
- Relative luminance: 0.3065
- Nearest named color: Lavender (#b56edc, Δ 4.296) — https://brandsweets.com/colors/lavender-2
- Moods: cool, vivid, light, technical, modern, clean
- Page: https://brandsweets.com/colors/b181e4

## Tints & shades

- Tints (toward white): #b98de7, #c09aea, #c6a2eb, #ceafee, #d5bcf1, #ddc8f3, #e5d5f6, #eaddf8, #f2eafb, #faf7fd
- Shades (toward black): #9f63de, #8f4ad9, #7d2dd2, #6e27b9, #5c219c, #4b1b7e, #3c1565, #2a0f48, #1b0a2e, #0a0411

## Harmonies

- Complementary: #b4e481
- Analogous: #8182e4, #e381e4
- Triadic: #e4b181, #81e4b1
- Split-complementary: #e4e381, #82e481
- Tetradic: #e48182, #b4e481, #81e4e3

## Colors that go with #b181e4

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 #b181e4 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 #b181e4 in 3 real palettes, including Mastodon hosted on mastodon.social's brand system and Blueprint, as the accent. Seen in: Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 3 real palettes, including Canva's brand system and Spotify's brand system put Blue beside #b181e4, as the accent. Seen in: Canva (https://brandsweets.com/colors/brands/canva-com), Spotify (https://brandsweets.com/colors/brands/spotify), Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #b181e4: 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 #b181e4 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 #b181e4 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 #b181e4 — 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 #b181e4: 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): 2.95:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9452da (4.69:1); AA: background → #2e2e2e (4.61:1); AAA: text → #782bca (7.01:1); AAA: background → #030303 (7:1)
- On black (#000000): 7.13:1 — AA pass, AA-large pass, AAA pass

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- modern: https://brandsweets.com/fonts/mood/modern
- clean: https://brandsweets.com/fonts/mood/clean

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/b181e4-b49cc4-cbcb62-2c1f2d-e9e9f1?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: "#b181e4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.