# #643b17

A color — warm, vivid, dark, playful, bold, luxury. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#643b17`
- RGB: rgb(100, 59, 23)
- HSL: hsl(28, 63%, 24%)
- OKLCH: oklch(0.395 0.076 58.8)
- Relative luminance: 0.059
- Nearest named color: Brown (#653700, Δ 1.6) — https://brandsweets.com/colors/brown-2
- Moods: warm, vivid, dark, playful, bold, luxury
- Page: https://brandsweets.com/colors/643b17

## Tints & shades

- Tints (toward white): #814c1d, #a25f25, #bf702b, #d48540, #da975d, #e1aa7a, #e8bf9b, #efd2b8, #f7e7da, #fdfaf7
- Shades (toward black): #5b3615, #533113, #4b2c11, #43270f, #3a220d, #321d0b, #2a1809, #211408, #190f06, #110a04

## Harmonies

- Complementary: #174064
- Analogous: #641719, #646117
- Triadic: #17643b, #3b1764
- Split-complementary: #176461, #171964
- Tetradic: #196417, #174064, #611764

## Colors that go with #643b17

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

- **Blue** #0000ff [pool] — 4 real palettes, including Dunkin''s brand system and Minecraft's brand system put Blue beside #643b17, 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 #643b17: 4 real palettes, including Bramble and Notion's brand system, as the supporting colour. Seen in: Bramble (https://brandsweets.com/palettes/muted#bramble), Notion (https://brandsweets.com/colors/brands/notion), Bakery (https://brandsweets.com/palettes/warm#bakery), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #643b17 in 4 real palettes, including M&M's's brand system and Burger King's brand system, as the supporting colour. Seen in: M&M's (https://brandsweets.com/colors/brands/mms-com), Burger King (https://brandsweets.com/colors/brands/bk-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com). — https://brandsweets.com/colors/crimson
- **Hunter Green** #355e3b [pool] — Hunter Green is paired with #643b17 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
- **Sage Green** #9caf88 [pool] — Designers have shipped Sage Green with #643b17: 8 real palettes, including Stone and Darkroom, as the supporting colour. Seen in: Stone (https://brandsweets.com/palettes/neutral#stone), Darkroom (https://brandsweets.com/palettes/muted#darkroom), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Resort (https://brandsweets.com/palettes/light#resort). — https://brandsweets.com/colors/sage-green
- **Steel Blue** #4682b4 [harmony: complementary] — Steel Blue sits directly opposite #643b17 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/steelblue
- **Royal Blue** #4169e1 [harmony, pool: split] — Royal Blue is a split-complement of #643b17: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Console Light (https://brandsweets.com/palettes/technical#console-light). — https://brandsweets.com/colors/royalblue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #643b17: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Tumblr (https://brandsweets.com/colors/brands/tumblr-com). — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 9.63:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.18:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #aa6427 (4.56:1); AA: background → #b3b3b3 (4.59:1); AAA: text → #d3823c (7.03:1); AAA: background → #dedede (7.16:1)

## Brands using this color

- **Domino's** — secondary #603913 (Δ 1.072) — https://brandsweets.com/colors/brands/dominos-com

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- playful: https://brandsweets.com/fonts/mood/playful
- bold: https://brandsweets.com/fonts/mood/bold
- luxury: https://brandsweets.com/fonts/mood/luxury

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/643b17-c4b39c-62cbc9-2d2c1f-f1e9ea?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: "#643b17" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.