# #866eb4

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

## Values

- Hex: `#866eb4`
- RGB: rgb(134, 110, 180)
- HSL: hsl(261, 32%, 57%)
- OKLCH: oklch(0.59 0.107 298.9)
- Relative luminance: 0.1952
- Nearest named color: Lavish Spending (#8469bc, Δ 2.037) — https://brandsweets.com/colors/lavish-spending
- Moods: cool, muted
- Page: https://brandsweets.com/colors/866eb4

## Tints & shades

- Tints (toward white): #927cbb, #9d89c2, #a897c9, #b4a4d0, #c2b5d9, #cdc2e0, #d8d0e7, #e3ddee, #eeebf5, #f9f8fc
- Shades (toward black): #795dac, #6a509b, #5f478a, #533e79, #473668, #3a2b54, #2e2343, #231a32, #15101e, #09070d

## Harmonies

- Complementary: #9cb46e
- Analogous: #6e79b4, #aa6eb4
- Triadic: #b4876e, #6eb487
- Split-complementary: #b4aa6e, #79b46e
- Tetradic: #b46e79, #9cb46e, #6eb4aa

## Colors that go with #866eb4

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 #866eb4: softer than #000 and cool enough to feel like part of the same palette. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Hermès (https://brandsweets.com/colors/brands/hermes-com), PlayStation® Official Site: Consoles, Games, Accessories & MoreSony Interactive Entertainment (https://brandsweets.com/colors/brands/playstation-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #866eb4: 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), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Netflix (https://brandsweets.com/colors/brands/netflix), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com). — https://brandsweets.com/colors/seagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #866eb4 in 6 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), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Crimson** #dc143c [pool] — Crimson is paired with #866eb4 in 5 real palettes, including Marvel's brand system and Retro Pop, as the accent. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Netflix (https://brandsweets.com/colors/brands/netflix). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #866eb4: 4 real palettes, including Calm's brand system and Astro's brand system, as the lead colour. Seen in: Calm (https://brandsweets.com/colors/brands/calm-com), Astro (https://brandsweets.com/colors/brands/astro-build), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #866eb4: 7 real palettes, including Campus and American Express's brand system, as the lead colour. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), American Express (https://brandsweets.com/colors/brands/americanexpress-com), The New York Times (https://brandsweets.com/colors/brands/nytimes-com), Linkedin (https://brandsweets.com/colors/brands/linkedin-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 8 real palettes, including Marvel's brand system and Plaid's brand system put Midnight Blue beside #866eb4, as the supporting colour. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), British Airways (https://brandsweets.com/colors/brands/britishairways-com). — https://brandsweets.com/colors/midnightblue
- **Red** #ff0000 [pool] — Red is paired with #866eb4 in 4 real palettes, including Nike's brand system and Pizza Hut's brand system, as the supporting colour. Seen in: Nike (https://brandsweets.com/colors/brands/nike-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), L'Oréal (https://brandsweets.com/colors/brands/loreal-com), Wired (https://brandsweets.com/colors/brands/wired-com). — https://brandsweets.com/colors/red

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

- On white (#ffffff): 4.28:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #8168b1 (4.62:1); AA: background → #0d0d0d (4.54:1); AAA: text → #634b91 (7.13:1)
- On black (#000000): 4.9:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #a08dc4 (7.1:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/866eb4-af9cc4-dfcb4e-2a1f2d-e9eaf1?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: "#866eb4" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.