# #643d3a

A color — warm, muted, editorial, elegant. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#643d3a`
- RGB: rgb(100, 61, 58)
- HSL: hsl(4, 27%, 31%)
- OKLCH: oklch(0.405 0.056 24.6)
- Relative luminance: 0.0635
- Nearest named color: Brunette (#664238, Δ 1.667) — https://brandsweets.com/colors/brunette
- Moods: warm, muted, editorial, elegant
- Page: https://brandsweets.com/colors/643d3a

## Tints & shades

- Tints (toward white): #7b4a47, #8e5652, #a46560, #b17b77, #be918e, #c9a4a1, #d6bab8, #e3d0ce, #eee3e2, #fbf9f9
- Shades (toward black): #5b3734, #543330, #4a2d2b, #412725, #3a2322, #311d1c, #271716, #1d1211, #170e0d, #0d0807

## Harmonies

- Complementary: #3a6264
- Analogous: #643a4c, #64523a
- Triadic: #3a643d, #3d3a64
- Split-complementary: #3a6452, #3a4c64
- Tetradic: #4c643a, #3a6264, #523a64

## Colors that go with #643d3a

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #643d3a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Saffron (https://brandsweets.com/palettes/warm#saffron), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Stanley (https://brandsweets.com/colors/brands/stanley1913-com). — https://brandsweets.com/colors/teal
- **Blue** #0000ff [pool] — 4 real palettes, including Dunkin''s brand system and Minecraft's brand system put Blue beside #643d3a, as the supporting colour. Seen in: Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Jeep (https://brandsweets.com/colors/brands/jeep-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com). — https://brandsweets.com/colors/blue
- **Copper** #b87333 [pool] — Designers have shipped Copper with #643d3a: 5 real palettes, including Bramble and Bakery, as the supporting colour. Seen in: Bramble (https://brandsweets.com/palettes/muted#bramble), Bakery (https://brandsweets.com/palettes/warm#bakery), Notion (https://brandsweets.com/colors/brands/notion), Desert Road (https://brandsweets.com/palettes/warm#desert-road). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #643d3a in 5 real palettes, including Dunkin''s brand system and M&M's's brand system, as the accent. Seen in: Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), M&M's (https://brandsweets.com/colors/brands/mms-com), Burger King (https://brandsweets.com/colors/brands/bk-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #643d3a: 4 real palettes, including Hinge's brand system and HP's brand system, as the accent. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), HP (https://brandsweets.com/colors/brands/hp-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Starlink (https://brandsweets.com/colors/brands/starlink-com). — https://brandsweets.com/colors/denim
- **Hunter Green** #355e3b [pool] — Hunter Green is paired with #643d3a in 4 real palettes, including Bookshop and Darkroom, as the accent. Seen in: Bookshop (https://brandsweets.com/palettes/editorial#bookshop), Darkroom (https://brandsweets.com/palettes/muted#darkroom), Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), Canopy (https://brandsweets.com/palettes/cool#canopy). — https://brandsweets.com/colors/hunter-green
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #643d3a in 4 real palettes, including Tumblr's brand system and Audi's brand system, as the accent. Seen in: Tumblr (https://brandsweets.com/colors/brands/tumblr-com), Audi (https://brandsweets.com/colors/brands/audi-com), HubSpot (https://brandsweets.com/colors/brands/hubspot-com), Neon (https://brandsweets.com/colors/brands/neon-tech). — https://brandsweets.com/colors/orangered
- **Cream** #fffdd0 [role] — Cream is the surface #643d3a wants: a warm off-white that shares its undertone, so #643d3a reads softer on it than on pure white. — https://brandsweets.com/colors/cream

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

- On white (#ffffff): 9.25:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.27:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #a46560 (4.61:1); AA: background → #b5b5b5 (4.51:1); AAA: text → #ba8b87 (7.13:1); AAA: background → #e0e0e0 (7.01:1)

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- editorial: https://brandsweets.com/fonts/mood/editorial
- elegant: https://brandsweets.com/fonts/mood/elegant

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/643d3a-c4a39c-62cb9f-2d261f-f1e9ed?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: "#643d3a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.