# #31373a

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

## Values

- Hex: `#31373a`
- RGB: rgb(49, 55, 58)
- HSL: hsl(200, 8%, 21%)
- OKLCH: oklch(0.332 0.01 229.2)
- Relative luminance: 0.0369
- Nearest named color: Artist’s Charcoal (#37393e, Δ 1.385) — https://brandsweets.com/colors/artists-charcoal
- Moods: muted, dark, luxury, bold
- Page: https://brandsweets.com/colors/31373a

## Tints & shades

- Tints (toward white): #444c50, #545e63, #677379, #7b888e, #919ca1, #a4adb2, #bac1c4, #d0d5d7, #e3e6e8, #f9fafa
- Shades (toward black): #2d3234, #2a2f32, #262a2c, #212527, #1e2224, #1a1d1e, #151819, #101213, #0e1011, #090a0b

## Harmonies

- Complementary: #3a3431
- Analogous: #313a38, #31333a
- Triadic: #3a3137, #373a31
- Split-complementary: #3a3133, #3a3831
- Tetradic: #38313a, #3a3431, #333a31

## Colors that go with #31373a

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

- **Amber** #ffbf00 [pool] — Amber is paired with #31373a in 8 real palettes, including McDonald's's brand system and Beach Hut, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 14 real palettes, including Minecraft's brand system and Dunkin''s brand system put Blue beside #31373a, as the accent. Seen in: Minecraft (https://brandsweets.com/colors/brands/minecraft-net), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), Jeep (https://brandsweets.com/colors/brands/jeep-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Garden Wedding and Rain Garden put Blush Pink beside #31373a, as the supporting colour. Seen in: Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Blush (https://brandsweets.com/palettes/light#blush), Nursery (https://brandsweets.com/palettes/light#nursery). — https://brandsweets.com/colors/blush-pink
- **Burlywood** #deb887 [pool] — Burlywood is paired with #31373a in 5 real palettes, including Polaroid and Coastal, as the accent. Seen in: Polaroid (https://brandsweets.com/palettes/light#polaroid), Coastal (https://brandsweets.com/palettes/cool#coastal), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Kiln (https://brandsweets.com/palettes/dark#kiln). — https://brandsweets.com/colors/burlywood
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #31373a: 9 real palettes, including Clean Beauty and Coastal, as the lead colour. Seen in: Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Coastal (https://brandsweets.com/palettes/cool#coastal), Open House (https://brandsweets.com/palettes/clean#open-house), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/cadetblue
- **Champagne** #f7e7ce [pool] — 7 real palettes, including Sweetgreen's brand system and Darkroom put Champagne beside #31373a, as the supporting colour. Seen in: Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Darkroom (https://brandsweets.com/palettes/muted#darkroom), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Allbirds (https://brandsweets.com/colors/brands/allbirds-com). — https://brandsweets.com/colors/champagne
- **Chocolate** #d2691e [pool] — Chocolate shows up next to #31373a in 4 real palettes, including Homestead and Wellness, as the accent. Seen in: Homestead (https://brandsweets.com/palettes/warm#homestead), Wellness (https://brandsweets.com/palettes/warm#wellness), Postman (https://brandsweets.com/colors/brands/postman-com), Farmers Market (https://brandsweets.com/palettes/warm#farmers-market). — https://brandsweets.com/colors/chocolate
- **White Smoke** #f5f5f5 [role] — White Smoke is the near-white surface #31373a was made for — maximum legibility with no colour cast to argue with. — https://brandsweets.com/colors/whitesmoke

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

- On white (#ffffff): 12.08:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.74:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #6c787f (4.63:1); AA: background → #9e9e9e (4.51:1); AAA: text → #8b979c (7:1); AAA: background → #c7c7c7 (7.15:1)

## Brands using this color

- **Audi** — primary #2c343f (Δ 1.77) — https://brandsweets.com/colors/brands/audi-com
- **Notion** — text #37352f (Δ 1.934) — https://brandsweets.com/colors/brands/notion

## Fonts for this mood

- 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/31373a-9cb2c4-df4e64-1f232d-e9f1f0?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: "#31373a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.