# #031b13

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

## Values

- Hex: `#031b13`
- RGB: rgb(3, 27, 19)
- HSL: hsl(160, 80%, 6%)
- OKLCH: oklch(0.2 0.035 168.6)
- Relative luminance: 0.0085
- Nearest named color: Black Stallion (#0e191c, Δ 2.755) — https://brandsweets.com/colors/black-stallion
- Moods: vivid, dark, luxury, bold
- Page: https://brandsweets.com/colors/031b13

## Tints & shades

- Tints (toward white): #084530, #0c6e4e, #119c6e, #16c58b, #23e7a5, #4cebb6, #75f0c7, #a3f5da, #cdf9ea, #f6fefb
- Shades (toward black): #031c13, #031c13, #031710, #031710, #031710, #031710, #031710, #02120d, #02120d, #02120d

## Harmonies

- Complementary: #1c030b
- Analogous: #031c07, #03171c
- Triadic: #13031c, #1c1303
- Split-complementary: #1c0317, #1c0703
- Tetradic: #07031c, #1c030b, #171c03

## Colors that go with #031b13

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

- **Blue Violet** #8a2be2 [harmony, pool: triadic] — Blue Violet completes a triad with #031b13 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Yahoo (https://brandsweets.com/colors/brands/yahoo-com), Prepare your taste buds... (https://brandsweets.com/colors/brands/grubhub-com), Klarna US (https://brandsweets.com/colors/brands/klarna-com), Taco Bell (https://brandsweets.com/colors/brands/tacobell-com). — https://brandsweets.com/colors/blueviolet
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #031b13: softer than #000 and cool enough to feel like part of the same palette. Seen in: Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Puma (https://brandsweets.com/colors/brands/puma-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: split] — Crimson is a split-complement of #031b13: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Chase (https://brandsweets.com/colors/brands/chase-com), Huawei (https://brandsweets.com/colors/brands/huawei-com), Foot Locker (https://brandsweets.com/colors/brands/footlocker-com). — https://brandsweets.com/colors/crimson
- **Sienna** #a0522d [harmony, pool: triadic] — Sienna completes a triad with #031b13 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Oatly (https://brandsweets.com/colors/brands/oatly-com), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke). — https://brandsweets.com/colors/sienna
- **Teal** #008080 [harmony, pool: analogous] — Teal is #031b13's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Perplexity (https://brandsweets.com/colors/brands/perplexity), Redfin (https://brandsweets.com/colors/brands/redfin-com), N26 (https://brandsweets.com/colors/brands/n26-com), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/teal
- **Medium Violet Red** #c71585 [harmony, pool: complementary] — Medium Violet Red sits directly opposite #031b13 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: T-Mobile (https://brandsweets.com/colors/brands/t-mobile-com), Bun (https://brandsweets.com/colors/brands/bun-sh). — https://brandsweets.com/colors/mediumvioletred
- **Amber** #ffbf00 [pool] — Amber is paired with #031b13 in 18 real palettes, including Warner Bros.'s brand system and Ahrefs's brand system, as the accent. Seen in: Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 24 real palettes, including CVS's brand system and MongoDB's brand system put Blue beside #031b13, as the supporting colour. Seen in: CVS (https://brandsweets.com/colors/brands/cvs-com), MongoDB (https://brandsweets.com/colors/brands/mongodb-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), EA (https://brandsweets.com/colors/brands/ea-com). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 17.95:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.17:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0f855e (4.54:1); AA: background → #808080 (4.54:1); AAA: text → #13aa78 (7.05:1); AAA: background → #a3a3a3 (7.12:1)

## 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/031b13-a2beb8-d459be-1f2c2d-e9f1eb?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: "#031b13" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.