# #8b66db

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

## Values

- Hex: `#8b66db`
- RGB: rgb(139, 102, 219)
- HSL: hsl(259, 62%, 63%)
- OKLCH: oklch(0.603 0.172 295.3)
- Relative luminance: 0.2011
- Nearest named color: mediumpurple (#9370db, Δ 2.84) — https://brandsweets.com/colors/mediumpurple
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/8b66db

## Tints & shades

- Tints (toward white): #9877df, #a183e2, #ae94e6, #b7a0e9, #c4b1ed, #cdbdef, #d9cdf3, #e3daf6, #efeafa, #f9f7fd
- Shades (toward black): #784dd5, #6635d0, #592cba, #4d26a1, #43218c, #371b74, #2b155b, #201042, #140a29, #080411

## Harmonies

- Complementary: #b6db66
- Analogous: #667cdb, #c666db
- Triadic: #db8b66, #66db8b
- Split-complementary: #dbc666, #7cdb66
- Tetradic: #db667c, #b6db66, #66dbc6

## Colors that go with #8b66db

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

- **Amber** #ffbf00 [pool] — Amber is paired with #8b66db in 4 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), Google (https://brandsweets.com/colors/brands/google-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Midnight Blue** #191970 [pool] — 4 real palettes, including Lavender Haze and Marvel's brand system put Midnight Blue beside #8b66db, as that palette's text colour. Seen in: Lavender Haze (https://brandsweets.com/palettes/playful#lavender-haze), Marvel (https://brandsweets.com/colors/brands/marvel-com), Discord (https://brandsweets.com/colors/brands/discord), Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [harmony, pool: analogous] — Royal Blue is #8b66db's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Stripe (https://brandsweets.com/colors/brands/stripe), Loom (https://brandsweets.com/colors/brands/loom-com), Yahoo (https://brandsweets.com/colors/brands/yahoo-com). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #8b66db in 6 real palettes, including Obsidian's brand system and Zed's brand system, as that palette's text colour. Seen in: Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Zed (https://brandsweets.com/colors/brands/zed-dev), Superhuman (https://brandsweets.com/colors/brands/superhuman-com), Loom (https://brandsweets.com/colors/brands/loom-com). — https://brandsweets.com/colors/taupe
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #8b66db on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/olive
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #8b66db: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/seagreen
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #8b66db: softer than #000 and cool enough to feel like part of the same palette. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/charcoal
- **Copper** #b87333 [harmony: split] — Copper is a split-complement of #8b66db: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/copper

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

- On white (#ffffff): 4.18:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #855ed9 (4.56:1); AA: background → #0f0f0f (4.58:1); AAA: text → #6635d0 (7.04:1)
- On black (#000000): 5.02:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #a487e3 (7.15:1)

## Fonts for this mood

- technical: https://brandsweets.com/fonts/mood/technical
- 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/8b66db-ad9cc4-dfc74e-2a1f2d-e9ebf1?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: "#8b66db" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.