# #666557

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

## Values

- Hex: `#666557`
- RGB: rgb(102, 101, 87)
- HSL: hsl(56, 8%, 37%)
- OKLCH: oklch(0.503 0.022 103.8)
- Relative luminance: 0.1282
- Nearest named color: Black Forest (#5e6354, Δ 1.492) — https://brandsweets.com/colors/black-forest
- Moods: muted, minimal
- Page: https://brandsweets.com/colors/666557

## Tints & shades

- Tints (toward white): #767565, #878673, #959483, #a4a294, #b4b3a7, #c2c1b7, #d0d0c8, #deded8, #ecece9, #fafaf9
- Shades (toward black): #5e5d50, #535246, #4a4a3f, #424138, #3a3931, #2f2e28, #272621, #1e1e1a, #131310, #0b0b09

## Harmonies

- Complementary: #575866
- Analogous: #665d57, #5f6657
- Triadic: #576665, #655766
- Split-complementary: #575f66, #5d5766
- Tetradic: #57665d, #575866, #66575f

## Colors that go with #666557

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 that reads cleanly against #666557 without the hard edge of pure #000. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Stanley (https://brandsweets.com/colors/brands/stanley1913-com), Campus (https://brandsweets.com/palettes/friendly#campus), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/charcoal
- **Champagne** #f7e7ce [pool] — 6 real palettes, including BrandSweets's brand system and Coffee Bar put Champagne beside #666557. Seen in: BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Darkroom (https://brandsweets.com/palettes/muted#darkroom). — https://brandsweets.com/colors/champagne
- **Copper** #b87333 [pool] — Designers have shipped Copper with #666557: 6 real palettes, including Clay & Linen and Riverbed, as the lead colour. Seen in: Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Riverbed (https://brandsweets.com/palettes/muted#riverbed), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Wellness (https://brandsweets.com/palettes/warm#wellness). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #666557 in 5 real palettes, including Gemstone and Five Guys's brand system, as the accent. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Five Guys (https://brandsweets.com/colors/brands/fiveguys-com), Netflix (https://brandsweets.com/colors/brands/netflix), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #666557: 7 real palettes, including Campus and HP's brand system, as the lead colour. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), HP (https://brandsweets.com/colors/brands/hp-com), Intel (https://brandsweets.com/colors/brands/intel-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com). — https://brandsweets.com/colors/denim
- **Goldenrod** #daa520 [pool] — Goldenrod shows up next to #666557 in 5 real palettes, including Mid-Century and Harvest, as the accent. Seen in: Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Harvest (https://brandsweets.com/palettes/warm#harvest), Fireside (https://brandsweets.com/palettes/dark#fireside), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/goldenrod
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #666557 in 4 real palettes, including Undergrowth and Indigo SaaS, as the lead colour. Seen in: Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Console Light (https://brandsweets.com/palettes/technical#console-light), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/mediumseagreen
- **Midnight Blue** #191970 [pool] — 5 real palettes, including Lufthansa's brand system and Paramount+'s brand system put Midnight Blue beside #666557, as the lead colour. Seen in: Lufthansa (https://brandsweets.com/colors/brands/lufthansa-com), Paramount+ (https://brandsweets.com/colors/brands/paramountplus-com), Open House (https://brandsweets.com/palettes/clean#open-house), Fintech Trust (https://brandsweets.com/palettes/cool#fintech-trust). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 5.89:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #58574b (7.29:1)
- On black (#000000): 3.56:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #767565 (4.5:1); AA: background → #e3e3e3 (4.59:1); AAA: text → #989786 (7.11:1)

## Fonts for this mood

- minimal: https://brandsweets.com/fonts/mood/minimal

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/666557-bdbea2-4e9edf-282d1f-f1ede9?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: "#666557" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.