# #866397

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

## Values

- Hex: `#866397`
- RGB: rgb(134, 99, 151)
- HSL: hsl(280, 21%, 49%)
- OKLCH: oklch(0.555 0.088 314.3)
- Relative luminance: 0.1623
- Nearest named color: Muted Purple (#805b87, Δ 3.136) — https://brandsweets.com/colors/muted-purple
- Moods: cool, muted
- Page: https://brandsweets.com/colors/866397

## Tints & shades

- Tints (toward white): #9271a2, #9e80ac, #aa90b6, #b59fc1, #c1afcb, #cbbbd3, #d7cbdd, #e3dae7, #eee9f1, #faf9fb
- Shades (toward black): #7b5b8b, #6d517b, #62496f, #553e60, #4a3653, #3c2c44, #312438, #231a28, #19121c, #0b080c

## Harmonies

- Complementary: #749763
- Analogous: #6b6397, #97638e
- Triadic: #978663, #639786
- Split-complementary: #8e9763, #63976b
- Tetradic: #976b63, #749763, #638e97

## Colors that go with #866397

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 #866397: softer than #000 and cool enough to feel like part of the same palette. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), Plaid (https://brandsweets.com/colors/brands/plaid-com), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Hermès (https://brandsweets.com/colors/brands/hermes-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: complementary] — Sea Green sits directly opposite #866397 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Next.js (https://brandsweets.com/colors/brands/nextjs-org), Subaru (https://brandsweets.com/colors/brands/subaru-com), Mushroom (https://brandsweets.com/palettes/neutral#mushroom). — https://brandsweets.com/colors/seagreen
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Marvel's brand system and Plaid's brand system put Midnight Blue beside #866397, 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), Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com). — https://brandsweets.com/colors/midnightblue
- **Royal Blue** #4169e1 [pool] — Royal Blue is paired with #866397 in 4 real palettes, including Slate Workspace and Stripe's brand system, as the accent. Seen in: Slate Workspace (https://brandsweets.com/palettes/minimal#slate-workspace), Stripe (https://brandsweets.com/colors/brands/stripe), GitHub (https://brandsweets.com/colors/brands/github), Subaru (https://brandsweets.com/colors/brands/subaru-com). — https://brandsweets.com/colors/royalblue
- **Taupe** #483c32 [pool] — Taupe is paired with #866397 in 11 real palettes, including Graphite Mono and Superhuman's brand system, as the lead colour. Seen in: Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono), Superhuman (https://brandsweets.com/colors/brands/superhuman-com), Greige (https://brandsweets.com/palettes/neutral#greige), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/taupe
- **Teal** #008080 [harmony, pool: split] — Teal is a split-complement of #866397: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Clinic (https://brandsweets.com/palettes/clean#clinic). — https://brandsweets.com/colors/teal
- **Crimson** #dc143c [pool] — Crimson is paired with #866397 in 3 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), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #866397: 3 real palettes, including Campus and The New York Times's brand system, as the lead colour. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), The New York Times (https://brandsweets.com/colors/brands/nytimes-com), Linkedin (https://brandsweets.com/colors/brands/linkedin-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 4.95:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #684d75 (7.22:1)
- On black (#000000): 4.25:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #8b689c (4.56:1); AA: background → #f5f5f5 (4.54:1); AAA: text → #a78db4 (7.11:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/866397-b99fc1-b8cb62-2d1f2c-ebe9f1?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: "#866397" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.