# #a66ecf

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

## Values

- Hex: `#a66ecf`
- RGB: rgb(166, 110, 207)
- HSL: hsl(275, 50%, 62%)
- OKLCH: oklch(0.636 0.151 309.4)
- Relative luminance: 0.2376
- Nearest named color: Amethyst (#9966cc, Δ 3.075) — https://brandsweets.com/colors/amethyst
- Moods: cool, modern
- Page: https://brandsweets.com/colors/a66ecf

## Tints & shades

- Tints (toward white): #b07dd4, #b788d7, #c098dd, #c7a3e0, #d0b3e6, #dac2eb, #e1cdee, #eaddf4, #f1e8f7, #faf7fc
- Shades (toward black): #9857c7, #8a40bf, #7c39ac, #6c3295, #5b2a7e, #4b2267, #3a1b50, #2c143d, #1c0d26, #0b050f

## Harmonies

- Complementary: #96cf6e
- Analogous: #766ecf, #cf6ec6
- Triadic: #cfa66e, #6ecfa6
- Split-complementary: #c6cf6e, #6ecf76
- Tetradic: #cf766e, #96cf6e, #6ec6cf

## Colors that go with #a66ecf

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

- **Olive Drab** #6b8e23 [harmony: complementary] — Olive Drab sits directly opposite #a66ecf 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/olivedrab
- **Amber** #ffbf00 [pool] — Amber is paired with #a66ecf in 3 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), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/amber
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #a66ecf: 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
- **Light Sky Blue** #87cefa [pool] — Light Sky Blue is paired with #a66ecf in 3 real palettes, including Netlify's brand system and Sentry's brand system, as the accent. Seen in: Netlify (https://brandsweets.com/colors/brands/netlify-com), Sentry (https://brandsweets.com/colors/brands/sentry-io), Calm (https://brandsweets.com/colors/brands/calm-com). — https://brandsweets.com/colors/lightskyblue
- **Midnight Blue** #191970 [pool] — 3 real palettes, including Lavender Haze and Marvel's brand system put Midnight Blue beside #a66ecf, 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), Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/midnightblue
- **Taupe** #483c32 [pool] — Taupe is paired with #a66ecf in 3 real palettes, including Loom's brand system and Obsidian's brand system, as that palette's text colour. Seen in: Loom (https://brandsweets.com/colors/brands/loom-com), Obsidian (https://brandsweets.com/colors/brands/obsidian-md), Zed (https://brandsweets.com/colors/brands/zed-dev). — https://brandsweets.com/colors/taupe
- **Cadet Blue** #5f9ea0 [harmony: split] — Cadet Blue is a split-complement of #a66ecf: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/cadetblue
- **Dark Goldenrod** #b8860b [harmony: split] — Dark Goldenrod is a split-complement of #a66ecf: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/darkgoldenrod

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

- On white (#ffffff): 3.65:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #9857c7 (4.64:1); AA: background → #1f1f1f (4.52:1); AAA: text → #7a38a8 (7.1:1)
- On black (#000000): 5.75:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #b485d6 (7.27:1)

## 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/a66ecf-b89cc4-c0cb62-2d1f2d-eae9f1?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: "#a66ecf" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.