# #0b2103

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

## Values

- Hex: `#0b2103`
- RGB: rgb(11, 33, 3)
- HSL: hsl(104, 83%, 7%)
- OKLCH: oklch(0.221 0.061 137.7)
- Relative luminance: 0.0117
- Nearest named color: Nightmare (#112211, Δ 2.397) — https://brandsweets.com/colors/nightmare
- Moods: vivid, dark, luxury, bold
- Page: https://brandsweets.com/colors/0b2103

## Tints & shades

- Tints (toward white): #194b07, #27750b, #359f0f, #43c913, #59eb24, #79ef4e, #98f278, #b8f6a2, #d8facc, #f8fef6
- Shades (toward black): #0b2103, #091c03, #091c03, #091c03, #091c03, #081702, #081702, #081702, #061302, #061302

## Harmonies

- Complementary: #190321
- Analogous: #1a2103, #03210a
- Triadic: #030b21, #21030b
- Split-complementary: #0a0321, #21031a
- Tetradic: #031a21, #190321, #210a03

## Colors that go with #0b2103

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: split] — Blue Violet is a split-complement of #0b2103: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Yahoo (https://brandsweets.com/colors/brands/yahoo-com), ClickUp (https://brandsweets.com/colors/brands/clickup-com), Prepare your taste buds... (https://brandsweets.com/colors/brands/grubhub-com), Klarna US (https://brandsweets.com/colors/brands/klarna-com). — https://brandsweets.com/colors/blueviolet
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #0b2103: 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), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: triadic] — Crimson completes a triad with #0b2103 — 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), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise). — https://brandsweets.com/colors/crimson
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #0b2103 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Signal (https://brandsweets.com/colors/brands/signal-org), Spectrum (https://brandsweets.com/colors/brands/spectrum-com), Yahoo (https://brandsweets.com/colors/brands/yahoo-com), Guinness (https://brandsweets.com/colors/brands/guinness-com). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: analogous] — Sea Green is #0b2103'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), Wellness (https://brandsweets.com/palettes/warm#wellness), Asana (https://brandsweets.com/colors/brands/asana-com), Subaru (https://brandsweets.com/colors/brands/subaru-com). — https://brandsweets.com/colors/seagreen
- **Dark Orchid** #9932cc [harmony, pool: complementary] — Dark Orchid sits directly opposite #0b2103 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 #0b2103 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), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 21 real palettes, including CVS's brand system and Signal's brand system put Blue beside #0b2103, 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): 17.03:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.23:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #2d870d (4.58:1); AA: background → #858585 (4.62:1); AAA: text → #3aad10 (7.16:1); AAA: background → #a8a8a8 (7.16:1)

## 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/0b2103-a6bea2-724edf-1f2d22-eff1e9?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: "#0b2103" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.