# #31121d

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

## Values

- Hex: `#31121d`
- RGB: rgb(49, 18, 29)
- HSL: hsl(339, 46%, 13%)
- OKLCH: oklch(0.234 0.052 359.6)
- Relative luminance: 0.0117
- Nearest named color: Black Cherry (#2c1620, Δ 1.476) — https://brandsweets.com/colors/black-cherry
- Moods: warm, dark, luxury, bold
- Page: https://brandsweets.com/colors/31121d

## Tints & shades

- Tints (toward white): #521e30, #702942, #913656, #af4167, #c25b7f, #cd7997, #da9ab1, #e5b8c8, #f1dae2, #fcf8f9
- Shades (toward black): #2d111a, #290f18, #250e16, #220c14, #220c14, #1e0b12, #1a0a0f, #16080d, #13070b, #0f0609

## Harmonies

- Complementary: #123026
- Analogous: #30122c, #301612
- Triadic: #1d3012, #121d30
- Split-complementary: #123016, #122c30
- Tetradic: #2c3012, #123026, #161230

## Colors that go with #31121d

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

- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #31121d: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: HubSpot (https://brandsweets.com/colors/brands/hubspot-com), Gusto (https://brandsweets.com/colors/brands/gusto-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Logitech (https://brandsweets.com/colors/brands/logitech-com). — https://brandsweets.com/colors/charcoal
- **Dark Olive Green** #556b2f [harmony, pool: triadic] — Dark Olive Green completes a triad with #31121d — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Cider (https://brandsweets.com/palettes/warm#cider), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Warp (https://brandsweets.com/colors/brands/warp-dev). — https://brandsweets.com/colors/darkolivegreen
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #31121d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Wellness (https://brandsweets.com/palettes/warm#wellness), Next.js (https://brandsweets.com/colors/brands/nextjs-org), Asana (https://brandsweets.com/colors/brands/asana-com), Subaru (https://brandsweets.com/colors/brands/subaru-com). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: analogous] — Sienna is #31121d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Harvest (https://brandsweets.com/palettes/warm#harvest), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/sienna
- **Steel Blue** #4682b4 [harmony, pool: triadic] — Steel Blue completes a triad with #31121d — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Launch Orange (https://brandsweets.com/palettes/bold#launch-orange), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com). — https://brandsweets.com/colors/steelblue
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #31121d 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), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Gusto (https://brandsweets.com/colors/brands/gusto-com), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #31121d in 18 real palettes, including Maple and Google's brand system, as the accent. Seen in: Maple (https://brandsweets.com/palettes/warm#maple), Google (https://brandsweets.com/colors/brands/google-com), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 22 real palettes, including Warp's brand system and Bumble's brand system put Blue beside #31121d, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Bumble (https://brandsweets.com/colors/brands/bumble-com), Signal (https://brandsweets.com/colors/brands/signal-org), Rolex (https://brandsweets.com/colors/brands/rolex-com). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 17.01:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.23:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #be5077 (4.6:1); AA: background → #858585 (4.61:1); AAA: text → #cf7d99 (7.05:1); AAA: background → #a8a8a8 (7.15:1)

## 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/31121d-c49ca5-62cb74-2d211f-f1e9f0?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: "#31121d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.