# #641f1b

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

## Values

- Hex: `#641f1b`
- RGB: rgb(100, 31, 27)
- HSL: hsl(3, 57%, 25%)
- OKLCH: oklch(0.347 0.101 26.9)
- Relative luminance: 0.0377
- Nearest named color: Bloodlust (#6b1c1a, Δ 1.498) — https://brandsweets.com/colors/bloodlust
- Moods: warm, dark, luxury, bold
- Page: https://brandsweets.com/colors/641f1b

## Tints & shades

- Tints (toward white): #802823, #a0322c, #bc3a34, #cd4e47, #d56c67, #dd8783, #e5a29f, #ecbdbb, #f5dcdb, #fdf7f7
- Shades (toward black): #5c1d19, #541a17, #4c1815, #441513, #3c1310, #300f0d, #280c0b, #200a09, #180707, #100504

## Harmonies

- Complementary: #1b6064
- Analogous: #641b3c, #64431b
- Triadic: #1b641f, #1f1b64
- Split-complementary: #1b6443, #1b3c64
- Tetradic: #3c641b, #1b6064, #431b64

## Colors that go with #641f1b

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 #641f1b 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), Mid-Century (https://brandsweets.com/palettes/warm#mid-century). — https://brandsweets.com/colors/teal
- **Blue** #0000ff [pool] — 4 real palettes, including Tim Hortons's brand system and Dunkin''s brand system put Blue beside #641f1b, as the accent. Seen in: Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Headspace (https://brandsweets.com/colors/brands/headspace-com). — https://brandsweets.com/colors/blue
- **Copper** #b87333 [pool] — Designers have shipped Copper with #641f1b: 5 real palettes, including Bramble and Chipotle's brand system, as the supporting colour. Seen in: Bramble (https://brandsweets.com/palettes/muted#bramble), Chipotle (https://brandsweets.com/colors/brands/chipotle-com), Bakery (https://brandsweets.com/palettes/warm#bakery), Notion (https://brandsweets.com/colors/brands/notion). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #641f1b 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), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/crimson
- **Powder Blue** #b0e0e6 [pool] — Designers have shipped Powder Blue with #641f1b: 4 real palettes, including Nursery and Macaron, as the supporting colour. Seen in: Nursery (https://brandsweets.com/palettes/light#nursery), Macaron (https://brandsweets.com/palettes/light#macaron), Stone (https://brandsweets.com/palettes/neutral#stone), Sorbet (https://brandsweets.com/palettes/light#sorbet). — https://brandsweets.com/colors/powderblue
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #641f1b — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Headspace (https://brandsweets.com/colors/brands/headspace-com), Rotten Tomatoes (https://brandsweets.com/colors/brands/rottentomatoes-com), Docker (https://brandsweets.com/colors/brands/docker-com). — https://brandsweets.com/colors/royalblue
- **Saddle Brown** #8b4513 [pool] — Designers have shipped Saddle Brown with #641f1b: 4 real palettes, including Domino's's brand system and Bakery, as the accent. Seen in: Domino's (https://brandsweets.com/colors/brands/dominos-com), Bakery (https://brandsweets.com/palettes/warm#bakery), Homestead (https://brandsweets.com/palettes/warm#homestead), Darkroom (https://brandsweets.com/palettes/muted#darkroom). — https://brandsweets.com/colors/saddlebrown
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #641f1b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Hinge (https://brandsweets.com/colors/brands/hinge-co), Squarespace (https://brandsweets.com/colors/brands/squarespace-com). — https://brandsweets.com/colors/charcoal

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

- On white (#ffffff): 11.97:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.75:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #cb4a43 (4.6:1); AA: background → #a1a1a1 (4.63:1); AAA: text → #da7c77 (7.13:1); AAA: background → #c7c7c7 (7.08:1)

## 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/641f1b-c4a39c-62cb9d-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: "#641f1b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.