# #a366cc

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

## Values

- Hex: `#a366cc`
- RGB: rgb(163, 102, 204)
- HSL: hsl(276, 50%, 60%)
- OKLCH: oklch(0.618 0.159 310.1)
- Relative luminance: 0.2165
- Nearest named color: Amethyst (#9966cc, Δ 1.73) — https://brandsweets.com/colors/amethyst
- Moods: cool, modern
- Page: https://brandsweets.com/colors/a366cc

## Tints & shades

- Tints (toward white): #ac75d1, #b685d6, #bc90da, #c69fdf, #cfafe4, #d8bee9, #e1cdee, #e8d9f2, #f1e8f7, #faf7fc
- Shades (toward black): #954fc4, #893ebb, #7937a4, #6b3091, #5a297a, #492163, #3b1b50, #2a1339, #1c0d26, #0b050f

## Harmonies

- Complementary: #8fcc66
- Analogous: #7066cc, #cc66c2
- Triadic: #cca366, #66cca3
- Split-complementary: #c2cc66, #66cc70
- Tetradic: #cc7066, #8fcc66, #66c2cc

## Colors that go with #a366cc

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

- **Taupe** #483c32 [pool] — Taupe is paired with #a366cc in 4 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), Superhuman (https://brandsweets.com/colors/brands/superhuman-com). — https://brandsweets.com/colors/taupe
- **Olive Drab** #6b8e23 [harmony: complementary] — Olive Drab sits directly opposite #a366cc 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
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #a366cc: softer than #000 and cool enough to feel like part of the same palette. Seen in: Hasbro (https://brandsweets.com/colors/brands/hasbro-com), Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/charcoal
- **Midnight Blue** #191970 [pool] — 3 real palettes, including Lavender Haze and Marvel's brand system put Midnight Blue beside #a366cc, 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
- **Cadet Blue** #5f9ea0 [harmony: split] — Cadet Blue is a split-complement of #a366cc: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/cadetblue
- **Olive Green** #808000 [harmony: split] — Olive Green is a split-complement of #a366cc: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Amber** #ffbf00 [pool] — Amber is paired with #a366cc in two real palettes: 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). — https://brandsweets.com/colors/amber
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #a366cc in two real palettes: ClickUp's brand system and Klarna US's brand system, as the lead colour. Seen in: ClickUp (https://brandsweets.com/colors/brands/clickup-com), Klarna US (https://brandsweets.com/colors/brands/klarna-com). — https://brandsweets.com/colors/blueviolet

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

- On white (#ffffff): 3.94:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #9a57c7 (4.6:1); AA: background → #171717 (4.55:1); AAA: text → #7b38a8 (7.06:1)
- On black (#000000): 5.33:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #b381d5 (7.02:1)

## 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/a366cc-b99cc4-bfcb62-2d1f2d-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: "#a366cc" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.