# #a66aa9

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

## Values

- Hex: `#a66aa9`
- RGB: rgb(166, 106, 169)
- HSL: hsl(297, 27%, 54%)
- OKLCH: oklch(0.611 0.115 325.2)
- Relative luminance: 0.2128
- Nearest named color: Crown Jewels (#946dad, Δ 3.097) — https://brandsweets.com/colors/crown-jewels
- Moods: cool, muted
- Page: https://brandsweets.com/colors/a66aa9

## Tints & shades

- Tints (toward white): #ae77b1, #b887ba, #bf94c2, #c9a4cb, #d1b1d2, #d8beda, #e2cee3, #eadbeb, #f3ecf4, #fbf9fb
- Shades (toward black): #9b5b9f, #8b528e, #7c497e, #6c3f6e, #5c365e, #4c2d4e, #3c233e, #2c1a2d, #1d111d, #0d070d

## Harmonies

- Complementary: #6da96a
- Analogous: #876aa9, #a96a8d
- Triadic: #a9a66a, #6aa9a6
- Split-complementary: #8da96a, #6aa987
- Tetradic: #a9876a, #6da96a, #6a8da9

## Colors that go with #a66aa9

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 #a66aa9: 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
- **Sea Green** #2e8b57 [harmony, pool: complementary] — Sea Green sits directly opposite #a66aa9 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/seagreen
- **Copper** #b87333 [harmony, pool: triadic] — Copper completes a triad with #a66aa9 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Atelier (https://brandsweets.com/palettes/elegant#atelier), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/copper
- **Cadet Blue** #5f9ea0 [harmony: split] — Cadet Blue is a split-complement of #a66aa9: 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 #a66aa9: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. — https://brandsweets.com/colors/olive
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #a66aa9 in two real palettes: Ledger Dark and Noir Beauty, as the lead colour. Seen in: Ledger Dark (https://brandsweets.com/palettes/dark#ledger-dark), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty). — https://brandsweets.com/colors/goldenrod
- **Midnight Blue** #191970 [pool] — Two real palettes: Plaid's brand system and Marvel's brand system put Midnight Blue beside #a66aa9, 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
- **Rust** #b7410e [pool] — Rust shows up next to #a66aa9 in two real palettes: Semrush's brand system and Noir Beauty, as the accent. Seen in: Semrush (https://brandsweets.com/colors/brands/semrush-com), Noir Beauty (https://brandsweets.com/palettes/dark#noir-beauty). — https://brandsweets.com/colors/rust

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

- On white (#ffffff): 4:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #9e5da2 (4.62:1); AA: background → #141414 (4.61:1); AAA: text → #78477b (7.03:1)
- On black (#000000): 5.26:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #b887ba (7.21:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/a66aa9-c19fbe-9acb62-2d1f28-ede9f1?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: "#a66aa9" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.