# #66536e

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

## Values

- Hex: `#66536e`
- RGB: rgb(102, 83, 110)
- HSL: hsl(282, 14%, 38%)
- OKLCH: oklch(0.471 0.049 315.8)
- Relative luminance: 0.1014
- Nearest named color: Hibernation (#6f5166, Δ 1.919) — https://brandsweets.com/colors/hibernation
- Moods: cool, muted
- Page: https://brandsweets.com/colors/66536e

## Tints & shades

- Tints (toward white): #766080, #876e91, #957f9f, #a491ac, #b2a2b9, #c0b3c6, #cfc5d3, #ddd6e0, #ece8ed, #faf9fb
- Shades (toward black): #5e4d66, #53445a, #4b3d51, #413546, #392e3d, #302734, #261f29, #1e1820, #130f14, #0b090c

## Harmonies

- Complementary: #5b6e53
- Analogous: #59536e, #6e5369
- Triadic: #6e6653, #536e66
- Split-complementary: #696e53, #536e59
- Tetradic: #6e5953, #5b6e53, #53696e

## Colors that go with #66536e

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 #66536e: softer than #000 and cool enough to feel like part of the same palette. Seen in: Harbour (https://brandsweets.com/palettes/cool#harbour), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), Campus (https://brandsweets.com/palettes/friendly#campus), Codecademy (https://brandsweets.com/colors/brands/codecademy-com). — https://brandsweets.com/colors/charcoal
- **Teal** #008080 [harmony, pool: split] — Teal is a split-complement of #66536e: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Clinic (https://brandsweets.com/palettes/clean#clinic), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/teal
- **Sea Green** #2e8b57 [harmony, pool: complementary] — Sea Green sits directly opposite #66536e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Subaru (https://brandsweets.com/colors/brands/subaru-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/seagreen
- **Champagne** #f7e7ce [pool] — 4 real palettes, including BrandSweets's brand system and Darkroom put Champagne beside #66536e. Seen in: BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Darkroom (https://brandsweets.com/palettes/muted#darkroom), Bramble (https://brandsweets.com/palettes/muted#bramble), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/champagne
- **Copper** #b87333 [pool] — Designers have shipped Copper with #66536e: 6 real palettes, including Dusk and Desert Road, as the accent. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Bakery (https://brandsweets.com/palettes/warm#bakery), Bramble (https://brandsweets.com/palettes/muted#bramble). — https://brandsweets.com/colors/copper
- **Denim** #1560bd [pool] — Designers have shipped Denim with #66536e: 7 real palettes, including HP's brand system and The New York Times's brand system, as the accent. Seen in: HP (https://brandsweets.com/colors/brands/hp-com), The New York Times (https://brandsweets.com/colors/brands/nytimes-com), Campus (https://brandsweets.com/palettes/friendly#campus), Hinge (https://brandsweets.com/colors/brands/hinge-co). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #66536e in 4 real palettes, including Open House and Mid-Century, as the accent. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Fireside (https://brandsweets.com/palettes/dark#fireside), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold). — https://brandsweets.com/colors/goldenrod
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #66536e in 4 real palettes, including Console Light and Fintech Trust, as the accent. Seen in: Console Light (https://brandsweets.com/palettes/technical#console-light), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth). — https://brandsweets.com/colors/mediumseagreen

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

- On white (#ffffff): 6.94:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #64516c (7.15:1)
- On black (#000000): 3.03:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #876e91 (4.67:1); AA: background → #d1d1d1 (4.54:1); AAA: text → #a491ac (7.22:1)

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/66536e-ba9fc1-b4cb62-2d1f2b-ebe9f1?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: "#66536e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.