# #31333f

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

## Values

- Hex: `#31333f`
- RGB: rgb(49, 51, 63)
- HSL: hsl(231, 13%, 22%)
- OKLCH: oklch(0.324 0.021 277.7)
- Relative luminance: 0.0338
- Nearest named color: Dark Charcoal (#333232, Δ 2.252) — https://brandsweets.com/colors/dark-charcoal
- Moods: cool, muted, dark, luxury, bold
- Page: https://brandsweets.com/colors/31333f

## Tints & shades

- Tints (toward white): #434656, #52566b, #646882, #757995, #8c90a6, #a3a6b8, #b7b9c8, #ced0d9, #e2e3e9, #f9f9fb
- Shades (toward black): #2c2e3a, #282a34, #262731, #21232b, #1d1e25, #181920, #14151a, #121317, #0d0e11, #09090c

## Harmonies

- Complementary: #3f3d31
- Analogous: #313a3f, #36313f
- Triadic: #3f3133, #333f31
- Split-complementary: #3f3631, #3a3f31
- Tetradic: #3f313a, #3f3d31, #313f36

## Colors that go with #31333f

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 #31333f in 9 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] — 15 real palettes, including Minecraft's brand system and Dunkin''s brand system put Blue beside #31333f, 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), Readymag (https://brandsweets.com/colors/brands/readymag-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Rain Garden and Blush put Blush Pink beside #31333f, as the accent. Seen in: Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Blush (https://brandsweets.com/palettes/light#blush), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Nursery (https://brandsweets.com/palettes/light#nursery). — https://brandsweets.com/colors/blush-pink
- **Burlywood** #deb887 [pool] — Burlywood is paired with #31333f 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 #31333f: 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 Darkroom and Sweetgreen's brand system put Champagne beside #31333f, as the surface under it. Seen in: Darkroom (https://brandsweets.com/palettes/muted#darkroom), Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Allbirds (https://brandsweets.com/colors/brands/allbirds-com), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor). — https://brandsweets.com/colors/champagne
- **Chocolate** #d2691e [pool] — Chocolate shows up next to #31333f 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 #31333f 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): 12.53:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.68:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #6f7490 (4.58:1); AA: background → #9c9c9c (4.56:1); AAA: text → #9295ab (7.11:1); AAA: background → #c2c2c2 (7.03:1)

## Brands using this color

- **Mercury** — primary #323341 (Δ 0.415) — https://brandsweets.com/colors/brands/mercury-com
- **Docker** — primary #2c333f (Δ 0.818) — https://brandsweets.com/colors/brands/docker-com
- **Audi** — primary #2c343f (Δ 0.842) — https://brandsweets.com/colors/brands/audi-com
- **Bloomberg** — secondary #2b333f (Δ 0.976) — https://brandsweets.com/colors/brands/bloomberg-com
- **Hermès** — accent #2b333f (Δ 0.976) — https://brandsweets.com/colors/brands/hermes-com
- **PlayStation® Official Site: Consoles, Games, Accessories & MoreSony Interactive Entertainment** — secondary #2b333f (Δ 0.976) — https://brandsweets.com/colors/brands/playstation-com
- **Asana** — primary #273240 (Δ 1.679) — https://brandsweets.com/colors/brands/asana-com
- **Volkswagen** — secondary #293043 (Δ 1.967) — https://brandsweets.com/colors/brands/vw-com

## Curated palettes containing it

- **Harbour** (ocean, cool, muted, editorial) — #3d5a80, #98c1d9, #ee6c4d, #f7f9fb, #293241 — Steel blue and haze with a buoy orange on a pale grey — the maritime palette every port town uses for a reason. — tool: https://brandsweets.com/palettes/new/3d5a80-98c1d9-ee6c4d-f7f9fb-293241 — collection: https://brandsweets.com/palettes/ocean
- **Dusty Blue** (wedding, cool, muted, calm) — #6f8faf, #b9c7d6, #d6b39c, #f9fafb, #26313d — Dusty blue and mist with a nude accent — the quiet wedding palette; nothing here competes with a photograph. — tool: https://brandsweets.com/palettes/new/6f8faf-b9c7d6-d6b39c-f9fafb-26313d — collection: https://brandsweets.com/palettes/wedding

## 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/31333f-9c9ec4-df834e-231f2d-e9eef1?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: "#31333f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.