# #866ef2

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

## Values

- Hex: `#866ef2`
- RGB: rgb(134, 110, 242)
- HSL: hsl(251, 84%, 69%)
- OKLCH: oklch(0.626 0.19 288)
- Relative luminance: 0.2263
- Nearest named color: mediumslateblue (#7b68ee, Δ 2.365) — https://brandsweets.com/colors/mediumslateblue
- Moods: cool, vivid, technical, modern
- Page: https://brandsweets.com/colors/866ef2

## Tints & shades

- Tints (toward white): #927cf4, #9d8af5, #a998f6, #b5a6f7, #c0b4f8, #c8bdf9, #d4cbfb, #e0d9fc, #ebe8fd, #f7f6fe
- Shades (toward black): #6e51f0, #5331ed, #3c14eb, #3312ca, #2c0fae, #240c8d, #1d0a71, #140750, #0d0434, #050213

## Harmonies

- Complementary: #daf26e
- Analogous: #6e98f2, #c86ef2
- Triadic: #f2866e, #6ef286
- Split-complementary: #f2c86e, #98f26e
- Tetradic: #f26e98, #daf26e, #6ef2c8

## Colors that go with #866ef2

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 #866ef2 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), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 8 real palettes, including Qualcomm's brand system and Penpot's brand system put Blue beside #866ef2, as the accent. Seen in: Qualcomm (https://brandsweets.com/colors/brands/qualcomm-com), Penpot (https://brandsweets.com/colors/brands/penpot-app), Signal (https://brandsweets.com/colors/brands/signal-org), Cargo (https://brandsweets.com/colors/brands/cargo-site). — https://brandsweets.com/colors/blue
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #866ef2: 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), Patreon (https://brandsweets.com/colors/brands/patreon-com), Venmo (https://brandsweets.com/colors/brands/venmo-com). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #866ef2: 5 real palettes, including Coursera's brand system and Fivetran blue's brand system, as the accent. Seen in: Coursera (https://brandsweets.com/colors/brands/coursera-org), Fivetran blue (https://brandsweets.com/colors/brands/fivetran-com), Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Guinness (https://brandsweets.com/colors/brands/guinness-com). — https://brandsweets.com/colors/denim
- **Midnight Blue** #191970 [pool] — 5 real palettes, including Lavender Haze and Discord's brand system put Midnight Blue beside #866ef2, as that palette's text colour. Seen in: Lavender Haze (https://brandsweets.com/palettes/playful#lavender-haze), Discord (https://brandsweets.com/colors/brands/discord), Marvel (https://brandsweets.com/colors/brands/marvel-com), Penpot (https://brandsweets.com/colors/brands/penpot-app). — https://brandsweets.com/colors/midnightblue
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #866ef2 in 5 real palettes, including Google's brand system and Clerk's brand system, as the supporting colour. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Clerk (https://brandsweets.com/colors/brands/clerk-com), Replit (https://brandsweets.com/colors/brands/replit), Databricks (https://brandsweets.com/colors/brands/databricks-com). — https://brandsweets.com/colors/orangered
- **Charcoal** #36454f [role] — Charcoal is the text near-black for #866ef2: softer than #000 and cool enough to feel like part of the same palette. — https://brandsweets.com/colors/charcoal
- **Olive Green** #808000 [harmony: complementary] — Olive Green sits directly opposite #866ef2 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): 3.8:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #765bf1 (4.63:1); AA: background → #1a1a1a (4.58:1); AAA: text → #4f2ced (7.2:1)
- On black (#000000): 5.53:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #9985f4 (7.02:1)

## 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/866ef2-a89cc4-dfb34e-281f2d-e9ecf1?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: "#866ef2" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.