# #644c1b

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

## Values

- Hex: `#644c1b`
- RGB: rgb(100, 76, 27)
- HSL: hsl(40, 57%, 25%)
- OKLCH: oklch(0.432 0.073 82.3)
- Relative luminance: 0.0796
- Nearest named color: Antique Brass (#6c461f, Δ 2.364) — https://brandsweets.com/colors/antique-brass
- Moods: warm, dark, luxury, bold
- Page: https://brandsweets.com/colors/644c1b

## Tints & shades

- Tints (toward white): #806123, #a0792c, #bc8f34, #cda047, #d5b167, #ddbf83, #e5cd9f, #ecdcbb, #f5ecdb, #fdfbf7
- Shades (toward black): #5c4619, #544017, #4c3a15, #443413, #3c2e10, #30240d, #281e0b, #201809, #181207, #100c04

## Harmonies

- Complementary: #1b3464
- Analogous: #64281b, #58641b
- Triadic: #1b644c, #4c1b64
- Split-complementary: #1b5864, #281b64
- Tetradic: #1b6428, #1b3464, #641b58

## Colors that go with #644c1b

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

- **Royal Blue** #4169e1 [harmony, pool: complementary] — Royal Blue sits directly opposite #644c1b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Console Light (https://brandsweets.com/palettes/technical#console-light), Subaru (https://brandsweets.com/colors/brands/subaru-com), GitHub (https://brandsweets.com/colors/brands/github). — https://brandsweets.com/colors/royalblue
- **Copper** #b87333 [pool] — Designers have shipped Copper with #644c1b: 4 real palettes, including Bakery and Clay & Linen, as the accent. Seen in: Bakery (https://brandsweets.com/palettes/warm#bakery), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), Desert Road (https://brandsweets.com/palettes/warm#desert-road), Bramble (https://brandsweets.com/palettes/muted#bramble). — https://brandsweets.com/colors/copper
- **Rust** #b7410e [pool] — Rust shows up next to #644c1b in 4 real palettes, including Magazine Ochre and Trailhead, as the lead colour. Seen in: Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Aesop (https://brandsweets.com/colors/brands/aesop-com), Harvest (https://brandsweets.com/palettes/warm#harvest). — https://brandsweets.com/colors/rust
- **Sage Green** #9caf88 [pool] — Designers have shipped Sage Green with #644c1b: 7 real palettes, including Darkroom and Homestead, as the supporting colour. Seen in: Darkroom (https://brandsweets.com/palettes/muted#darkroom), Homestead (https://brandsweets.com/palettes/warm#homestead), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Stone (https://brandsweets.com/palettes/neutral#stone). — https://brandsweets.com/colors/sage-green
- **Blue** #0000ff [pool] — 3 real palettes, including Warp's brand system and Rolex's brand system put Blue beside #644c1b, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Rolex (https://brandsweets.com/colors/brands/rolex-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 3 real palettes, including Blush and Nursery put Blush Pink beside #644c1b, as the supporting colour. Seen in: Blush (https://brandsweets.com/palettes/light#blush), Nursery (https://brandsweets.com/palettes/light#nursery), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding). — https://brandsweets.com/colors/blush-pink
- **Champagne** #f7e7ce [pool] — 3 real palettes, including Darkroom and BrandSweets's brand system put Champagne beside #644c1b, as the surface under it. Seen in: Darkroom (https://brandsweets.com/palettes/muted#darkroom), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Bramble (https://brandsweets.com/palettes/muted#bramble). — https://brandsweets.com/colors/champagne
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #644c1b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Codecademy (https://brandsweets.com/colors/brands/codecademy-com). — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 8.1:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.59:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #947029 (4.61:1); AA: background → #c2c2c2 (4.55:1); AAA: text → #bc8f34 (7.12:1); AAA: background → #f0f0f0 (7.11:1)

## Fonts for this mood

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

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/644c1b-c4bb9c-62b8cb-2c2d1f-f1ebe9?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: "#644c1b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.