# #0b281f

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

## Values

- Hex: `#0b281f`
- RGB: rgb(11, 40, 31)
- HSL: hsl(161, 57%, 10%)
- OKLCH: oklch(0.252 0.039 169.8)
- Relative luminance: 0.0169
- Nearest named color: Nightmare (#112211, Δ 2.674) — https://brandsweets.com/colors/nightmare
- Moods: dark, luxury, bold
- Page: https://brandsweets.com/colors/0b281f

## Tints & shades

- Tints (toward white): #154c3b, #1f7056, #27906f, #31b48b, #47cda2, #6bd6b4, #8fe0c7, #afe9d7, #d3f3e9, #f7fdfb
- Shades (toward black): #0a241c, #0a241c, #092019, #092019, #081c16, #071812, #071812, #05140f, #05140f, #04100c

## Harmonies

- Complementary: #280b14
- Analogous: #0b2810, #0b2328
- Triadic: #1f0b28, #281f0b
- Split-complementary: #280b23, #28100b
- Tetradic: #100b28, #280b14, #23280b

## Colors that go with #0b281f

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 text near-black for #0b281f: softer than #000 and cool enough to feel like part of the same palette. Seen in: Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Boeing (https://brandsweets.com/colors/brands/boeing-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: split] — Crimson is a split-complement of #0b281f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: AliExpress (https://brandsweets.com/colors/brands/aliexpress-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Svelte (https://brandsweets.com/colors/brands/svelte-dev), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/crimson
- **Sienna** #a0522d [harmony, pool: triadic] — Sienna completes a triad with #0b281f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Harvest (https://brandsweets.com/palettes/warm#harvest). — https://brandsweets.com/colors/sienna
- **Slate Blue** #6a5acd [harmony, pool: triadic] — Slate Blue completes a triad with #0b281f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: GitLab (https://brandsweets.com/colors/brands/gitlab), Superhuman (https://brandsweets.com/colors/brands/superhuman-com), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Calm (https://brandsweets.com/colors/brands/calm-com). — https://brandsweets.com/colors/slateblue
- **Teal** #008080 [harmony, pool: analogous] — Teal is #0b281f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Alpine (https://brandsweets.com/palettes/cool#alpine), Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Gusto (https://brandsweets.com/colors/brands/gusto-com), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/teal
- **Medium Violet Red** #c71585 [harmony, pool: complementary] — Medium Violet Red sits directly opposite #0b281f 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 #0b281f in 18 real palettes, including Wikipedia's brand system and Google's brand system, as the accent. Seen in: Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Google (https://brandsweets.com/colors/brands/google-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 24 real palettes, including Rolex's brand system and Bumble's brand system put Blue beside #0b281f, as the accent. Seen in: Rolex (https://brandsweets.com/colors/brands/rolex-com), Bumble (https://brandsweets.com/colors/brands/bumble-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Signal (https://brandsweets.com/colors/brands/signal-org). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 15.7:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.34:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #248466 (4.57:1); AA: background → #8a8a8a (4.55:1); AAA: text → #2ea881 (7.03:1); AAA: background → #b0b0b0 (7.24:1)

## Curated palettes containing it

- **Mint Modern** (modern, clean, friendly) — #10b981, #134e4a, #f59e0b, #ffffff, #10231b — Emerald as a primary rather than a success color, anchored by deep teal text — fresh, friendly, and fintech-adjacent. — tool: https://brandsweets.com/palettes/new/10b981-134e4a-f59e0b-ffffff-10231b — collection: https://brandsweets.com/palettes/modern

## 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/0b281f-a2beb8-d459bb-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: "#0b281f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.