# #181d0b

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

## Values

- Hex: `#181d0b`
- RGB: rgb(24, 29, 11)
- HSL: hsl(77, 45%, 8%)
- OKLCH: oklch(0.22 0.033 121.9)
- Relative luminance: 0.011
- Nearest named color: Nightmare (#112211, Δ 1.904) — https://brandsweets.com/colors/nightmare
- Moods: dark, luxury, bold
- Page: https://brandsweets.com/colors/181d0b

## Tints & shades

- Tints (toward white): #343f18, #4f6024, #6b8131, #86a33e, #9fbd51, #b1ca72, #c3d694, #d6e3b5, #e8f0d6, #fbfcf8
- Shades (toward black): #181e0b, #151a0a, #151a0a, #121608, #121608, #121608, #0f1207, #0f1207, #0c0f06, #0c0f06

## Harmonies

- Complementary: #100b1e
- Analogous: #1e1a0b, #0f1e0b
- Triadic: #0b181e, #1e0b18
- Split-complementary: #0b0f1e, #1a0b1e
- Tetradic: #0b1e1a, #100b1e, #1e0b0f

## Colors that go with #181d0b

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 #181d0b: 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), Gusto (https://brandsweets.com/colors/brands/gusto-com), Hinge (https://brandsweets.com/colors/brands/hinge-co), Logitech (https://brandsweets.com/colors/brands/logitech-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: split] — Royal Blue is a split-complement of #181d0b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. 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), GitHub (https://brandsweets.com/colors/brands/github). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: analogous] — Sea Green is #181d0b'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), Asana (https://brandsweets.com/colors/brands/asana-com), Wellness (https://brandsweets.com/palettes/warm#wellness), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com). — https://brandsweets.com/colors/seagreen
- **Slate Blue** #6a5acd [harmony, pool: complementary] — Slate Blue sits directly opposite #181d0b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. 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), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas). — https://brandsweets.com/colors/slateblue
- **Steel Blue** #4682b4 [harmony, pool: triadic] — Steel Blue completes a triad with #181d0b — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Launch Orange (https://brandsweets.com/palettes/bold#launch-orange), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), American Express (https://brandsweets.com/colors/brands/americanexpress-com), Plaid (https://brandsweets.com/colors/brands/plaid-com). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #181d0b 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] — 25 real palettes, including CVS's brand system and Signal's brand system put Blue beside #181d0b, 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
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #181d0b in 10 real palettes, including Yahoo's brand system and ClickUp's brand system, as the supporting colour. 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

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

- On white (#ffffff): 17.22:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.22:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #687e30 (4.62:1); AA: background → #858585 (4.67:1); AAA: text → #86a33e (7.32:1); AAA: background → #a6a6a6 (7.07:1)

## 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/181d0b-b3bea2-4e6bdf-232d1f-f1efe9?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: "#181d0b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.