# #a66cb2

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

## Values

- Hex: `#a66cb2`
- RGB: rgb(166, 108, 178)
- HSL: hsl(290, 31%, 56%)
- OKLCH: oklch(0.618 0.121 320.6)
- Relative luminance: 0.2205
- Nearest named color: Crown Jewels (#946dad, Δ 3.162) — https://brandsweets.com/colors/crown-jewels
- Moods: cool, muted
- Page: https://brandsweets.com/colors/a66cb2

## Tints & shades

- Tints (toward white): #ae79b9, #b687c0, #c097c8, #c8a5cf, #d0b2d7, #d9c0de, #e1cde5, #ebdeed, #f3ebf4, #fbf8fb
- Shades (toward black): #9c5ba9, #8e519a, #7b4686, #6c3e75, #5c3564, #4d2c54, #3e2343, #2b192f, #1c101e, #0c070d

## Harmonies

- Complementary: #78b26c
- Analogous: #836cb2, #b26c9a
- Triadic: #b2a66c, #6cb2a6
- Split-complementary: #9ab26c, #6cb283
- Tetradic: #b2836c, #78b26c, #6c9ab2

## Colors that go with #a66cb2

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 #a66cb2: 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
- **Olive Drab** #6b8e23 [harmony: complementary] — Olive Drab sits directly opposite #a66cb2 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
- **Copper** #b87333 [harmony, pool: triadic] — Copper completes a triad with #a66cb2 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/copper
- **Cadet Blue** #5f9ea0 [harmony: split] — Cadet Blue is a split-complement of #a66cb2: 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 #a66cb2: 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 #a66cb2 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
- **Midnight Blue** #191970 [pool] — Two real palettes: Plaid's brand system and Marvel's brand system put Midnight Blue beside #a66cb2, as the supporting colour. Seen in: Plaid (https://brandsweets.com/colors/brands/plaid-com), Marvel (https://brandsweets.com/colors/brands/marvel-com). — https://brandsweets.com/colors/midnightblue
- **Taupe** #483c32 [pool] — Taupe is paired with #a66cb2 in two real palettes: Loom's brand system and Dusk, as that palette's text colour. Seen in: Loom (https://brandsweets.com/colors/brands/loom-com), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 3.88:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #9c5ba9 (4.68:1); AA: background → #171717 (4.62:1); AAA: text → #784582 (7.07:1)
- On black (#000000): 5.41:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #b687c0 (7.22:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/a66cb2-bf9fc1-a6cb62-2d1f29-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: "#a66cb2" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.