# #0b1f00

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

## Values

- Hex: `#0b1f00`
- RGB: rgb(11, 31, 0)
- HSL: hsl(99, 100%, 6%)
- OKLCH: oklch(0.214 0.062 135)
- Relative luminance: 0.0105
- Nearest named color: Nightmare (#112211, Δ 2.995) — https://brandsweets.com/colors/nightmare
- Moods: vivid, dark, luxury, bold
- Page: https://brandsweets.com/colors/0b1f00

## Tints & shades

- Tints (toward white): #1b4d00, #2b7a00, #3dad00, #4ddb00, #60ff0a, #7eff38, #9cff66, #bdff99, #dbffc7, #f8fff5
- Shades (toward black): #0b1f00, #0b1f00, #091900, #091900, #091900, #091900, #091900, #071400, #071400, #071400

## Harmonies

- Complementary: #14001f
- Analogous: #1a1f00, #001f05
- Triadic: #000b1f, #1f000b
- Split-complementary: #05001f, #1f001a
- Tetradic: #001a1f, #14001f, #1f0500

## Colors that go with #0b1f00

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 #0b1f00: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Gusto (https://brandsweets.com/colors/brands/gusto-com), Puma (https://brandsweets.com/colors/brands/puma-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #0b1f00 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), Huawei (https://brandsweets.com/colors/brands/huawei-com), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/crimson
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #0b1f00 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Spectrum (https://brandsweets.com/colors/brands/spectrum-com), Signal (https://brandsweets.com/colors/brands/signal-org), Guinness (https://brandsweets.com/colors/brands/guinness-com), Yahoo (https://brandsweets.com/colors/brands/yahoo-com). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: analogous] — Sea Green is #0b1f00's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Next.js (https://brandsweets.com/colors/brands/nextjs-org), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Asana (https://brandsweets.com/colors/brands/asana-com), Wellness (https://brandsweets.com/palettes/warm#wellness). — https://brandsweets.com/colors/seagreen
- **Slate Blue** #6a5acd [harmony, pool: split] — Slate Blue is a split-complement of #0b1f00: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: GitLab (https://brandsweets.com/colors/brands/gitlab), Calm (https://brandsweets.com/colors/brands/calm-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Linear (https://brandsweets.com/colors/brands/linear). — https://brandsweets.com/colors/slateblue
- **Dark Orchid** #9932cc [harmony, pool: complementary] — Dark Orchid sits directly opposite #0b1f00 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Peacock (https://brandsweets.com/palettes/vivid#peacock), Laser (https://brandsweets.com/palettes/vivid#laser). — https://brandsweets.com/colors/darkorchid
- **Amber** #ffbf00 [pool] — Amber is paired with #0b1f00 in 18 real palettes, including Trailhead and Warner Bros.'s brand system, as the accent. Seen in: Trailhead (https://brandsweets.com/palettes/warm#trailhead), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Maple (https://brandsweets.com/palettes/warm#maple), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 21 real palettes, including CVS's brand system and Signal's brand system put Blue beside #0b1f00, as the supporting colour. Seen in: CVS (https://brandsweets.com/colors/brands/cvs-com), Signal (https://brandsweets.com/colors/brands/signal-org), Bumble (https://brandsweets.com/colors/brands/bumble-com), Rolex (https://brandsweets.com/colors/brands/rolex-com). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 17.35:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.21:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #308a00 (4.76:1); AA: background → #828282 (4.52:1); AAA: text → #3dad00 (7.18:1); AAA: background → #a6a6a6 (7.13:1)

## 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/0b1f00-a8bea2-664edf-1f2d21-f0f1e9?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: "#0b1f00" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.