# #a663bb

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

## Values

- Hex: `#a663bb`
- RGB: rgb(166, 99, 187)
- HSL: hsl(286, 39%, 56%)
- OKLCH: oklch(0.608 0.146 317.7)
- Relative luminance: 0.2062
- Nearest named color: Amethyst (#9966cc, Δ 3.406) — https://brandsweets.com/colors/amethyst
- Moods: cool, modern
- Page: https://brandsweets.com/colors/a663bb

## Tints & shades

- Tints (toward white): #ae71c1, #b67fc7, #c091cf, #c89fd5, #d1addb, #d9bce1, #e1cae8, #ebdcef, #f3eaf6, #fbf8fc
- Shades (toward black): #9c51b3, #8e48a3, #7b3e8e, #6c367c, #5c2f6a, #4d2759, #3e1f47, #2b1632, #1c0e20, #0c060e

## Harmonies

- Complementary: #77bb63
- Analogous: #7a63bb, #bb63a3
- Triadic: #bba663, #63bba6
- Split-complementary: #a3bb63, #63bb7a
- Tetradic: #bb7a63, #77bb63, #63a3bb

## Colors that go with #a663bb

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 #a663bb 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 #a663bb: 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 Marvel's brand system and Lavender Haze put Midnight Blue beside #a663bb, 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). — https://brandsweets.com/colors/midnightblue
- **Taupe** #483c32 [pool] — Taupe is paired with #a663bb 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), Superhuman (https://brandsweets.com/colors/brands/superhuman-com). — https://brandsweets.com/colors/taupe
- **Cadet Blue** #5f9ea0 [harmony: split] — Cadet Blue is a split-complement of #a663bb: 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 #a663bb: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #a663bb in two real palettes: Klarna US's brand system and ClickUp's brand system, as the accent. Seen in: Klarna US (https://brandsweets.com/colors/brands/klarna-com), ClickUp (https://brandsweets.com/colors/brands/clickup-com). — https://brandsweets.com/colors/blueviolet
- **Denim** #1560bd [pool] — Designers have shipped Denim with #a663bb: two real palettes: Linkedin's brand system and Hasbro's brand system, as the lead colour. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Hasbro (https://brandsweets.com/colors/brands/hasbro-com). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 4.1:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #a058b6 (4.6:1); AA: background → #121212 (4.57:1); AAA: text → #7b3e8e (7.19:1)
- On black (#000000): 5.12:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #b883c9 (7.13:1)

## 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/a663bb-bd9fc1-adcb62-2d1f2a-ece9f1?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: "#a663bb" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.