# #866ecf

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

## Values

- Hex: `#866ecf`
- RGB: rgb(134, 110, 207)
- HSL: hsl(255, 50%, 62%)
- OKLCH: oklch(0.604 0.144 293)
- Relative luminance: 0.2073
- Nearest named color: mediumpurple (#9370db, Δ 2.811) — https://brandsweets.com/colors/mediumpurple
- Moods: cool, modern
- Page: https://brandsweets.com/colors/866ecf

## Tints & shades

- Tints (toward white): #937dd4, #9c88d7, #a998dd, #b3a3e0, #bfb3e6, #ccc2eb, #d6cdee, #e2ddf4, #ece8f7, #f9f7fc
- Shades (toward black): #7357c7, #6040bf, #5639ac, #4b3295, #3f2a7e, #342267, #281b50, #1f143d, #130d26, #08050f

## Harmonies

- Complementary: #b6cf6e
- Analogous: #6e86cf, #b66ecf
- Triadic: #cf866e, #6ecf86
- Split-complementary: #cfb66e, #86cf6e
- Tetradic: #cf6e86, #b6cf6e, #6ecfb6

## Colors that go with #866ecf

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 #866ecf: 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
- **Amber** #ffbf00 [pool] — Amber is paired with #866ecf 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), Google (https://brandsweets.com/colors/brands/google-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Crimson** #dc143c [pool] — Crimson is paired with #866ecf in 4 real palettes, including Marvel's brand system and Pizza Hut's brand system, as the accent. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Netflix (https://brandsweets.com/colors/brands/netflix), Ulta Beauty (https://brandsweets.com/colors/brands/ulta-com). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #866ecf: 5 real palettes, including Calm's brand system and Blueprint, as the lead colour. Seen in: Calm (https://brandsweets.com/colors/brands/calm-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Astro (https://brandsweets.com/colors/brands/astro-build), Telegram (https://brandsweets.com/colors/brands/telegram-org). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #866ecf: 9 real palettes, including Linkedin's brand system and Fivetran blue's brand system, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com), American Express (https://brandsweets.com/colors/brands/americanexpress-com), The New York Times (https://brandsweets.com/colors/brands/nytimes-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 7 real palettes, including Marvel's brand system and Lavender Haze put Midnight Blue beside #866ecf, as the supporting colour. Seen in: Marvel (https://brandsweets.com/colors/brands/marvel-com), Lavender Haze (https://brandsweets.com/palettes/playful#lavender-haze), Plaid (https://brandsweets.com/colors/brands/plaid-com), Discord (https://brandsweets.com/colors/brands/discord). — https://brandsweets.com/colors/midnightblue
- **Red** #ff0000 [pool] — Red is paired with #866ecf in 5 real palettes, including Nike's brand system and Twitch's brand system, as the supporting colour. Seen in: Nike (https://brandsweets.com/colors/brands/nike-com), Twitch (https://brandsweets.com/colors/brands/twitch-tv), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), L'Oréal (https://brandsweets.com/colors/brands/loreal-com). — https://brandsweets.com/colors/red
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #866ecf 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

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

- On white (#ffffff): 4.08:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #7c62cb (4.7:1); AA: background → #141414 (4.51:1); AAA: text → #6040bf (7.04:1)
- On black (#000000): 5.15:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #9f8cd9 (7.23:1)

## 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/866ecf-ab9cc4-dfbd4e-291f2d-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: "#866ecf" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.