# #181c2b

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

## Values

- Hex: `#181c2b`
- RGB: rgb(24, 28, 43)
- HSL: hsl(227, 28%, 13%)
- OKLCH: oklch(0.23 0.03 272.4)
- Relative luminance: 0.012
- Nearest named color: Dark Knight (#151931, Δ 1.859) — https://brandsweets.com/colors/dark-knight
- Moods: cool, muted, dark, luxury, bold
- Page: https://brandsweets.com/colors/181c2b

## Tints & shades

- Tints (toward white): #282f48, #374062, #48547f, #566599, #6f7dae, #8995bd, #a7afcd, #c1c7dc, #dee1ed, #f8f9fb
- Shades (toward black): #161a27, #141824, #121521, #11131d, #11131d, #0f111a, #0d0f17, #0b0d14, #090b10, #07090d

## Harmonies

- Complementary: #2a2618
- Analogous: #18252a, #1d182a
- Triadic: #2a181c, #1c2a18
- Split-complementary: #2a1d18, #252a18
- Tetradic: #2a1825, #2a2618, #182a1d

## Colors that go with #181c2b

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 that reads cleanly against #181c2b without the hard edge of pure #000. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Audi (https://brandsweets.com/colors/brands/audi-com), Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Volkswagen (https://brandsweets.com/colors/brands/vw-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #181c2b in 18 real palettes, including Blueprint and Google's brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Google (https://brandsweets.com/colors/brands/google-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 23 real palettes, including Warp's brand system and Signal's brand system put Blue beside #181c2b, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Signal (https://brandsweets.com/colors/brands/signal-org), Bumble (https://brandsweets.com/colors/brands/bumble-com), CVS (https://brandsweets.com/colors/brands/cvs-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #181c2b in 10 real palettes, including ClickUp's brand system and Yahoo's brand system, as the lead colour. Seen in: ClickUp (https://brandsweets.com/colors/brands/clickup-com), Yahoo (https://brandsweets.com/colors/brands/yahoo-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
- **Blush Pink** #e8b4b8 [pool] — 5 real palettes, including Graphite Mono and Estate put Blush Pink beside #181c2b, as the accent. Seen in: Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono), Estate (https://brandsweets.com/palettes/luxury#estate), Cartier (https://brandsweets.com/colors/brands/cartier-com), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden). — https://brandsweets.com/colors/blush-pink
- **Brown** #a52a2a [pool] — 5 real palettes, including Woodsmoke and State Farm's brand system put Brown beside #181c2b, as the accent. Seen in: Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Typewriter (https://brandsweets.com/palettes/editorial#typewriter), Garnet (https://brandsweets.com/palettes/warm#garnet). — https://brandsweets.com/colors/brown
- **Burgundy** #800020 [pool] — 4 real palettes, including Qatar Airways's brand system and Mailchimp's brand system put Burgundy beside #181c2b, as the accent. Seen in: Qatar Airways (https://brandsweets.com/colors/brands/qatarairways-com), Mailchimp (https://brandsweets.com/colors/brands/mailchimp-com), Candlelight (https://brandsweets.com/palettes/warm#candlelight), Rare Beauty (https://brandsweets.com/colors/brands/rarebeauty-com). — https://brandsweets.com/colors/burgundy
- **Burlywood** #deb887 [pool] — Burlywood is paired with #181c2b in 6 real palettes, including Coffee Bar and Kiln, as the accent. Seen in: Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Kiln (https://brandsweets.com/palettes/dark#kiln), Coastal (https://brandsweets.com/palettes/cool#coastal), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard). — https://brandsweets.com/colors/burlywood

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

- On white (#ffffff): 16.94:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.24:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #6674a9 (4.64:1); AA: background → #858585 (4.59:1); AAA: text → #8995bd (7.1:1); AAA: background → #a8a8a8 (7.12:1)

## Brands using this color

- **Asana** — secondary #151b26 (Δ 1.152) — https://brandsweets.com/colors/brands/asana-com
- **Airtable** — accent #181d26 (Δ 1.154) — https://brandsweets.com/colors/brands/airtable-com
- **Formula 1** — text #1c1c25 (Δ 1.346) — https://brandsweets.com/colors/brands/formula1-com
- **Audi** — secondary #181d25 (Δ 1.347) — https://brandsweets.com/colors/brands/audi-com
- **Qatar Airways** — secondary #181825 (Δ 1.604) — https://brandsweets.com/colors/brands/qatarairways-com
- **NFL** — accent #172029 (Δ 1.605) — https://brandsweets.com/colors/brands/nfl-com
- **Box** — text #151f26 (Δ 1.738) — https://brandsweets.com/colors/brands/box-com

## Curated palettes containing it

- **Arctic** (clean, cool, minimal) — #0f1b2d, #7d93a8, #0ea5e9, #ffffff — Navy type on white with an ice-blue accent: crisp and corporate without going grey. — tool: https://brandsweets.com/palettes/new/0f1b2d-7d93a8-0ea5e9-ffffff — collection: https://brandsweets.com/palettes/clean
- **Pastel Pop** (pastel, playful, vivid, light) — #ff9fb2, #9ad0ec, #ffe08a, #ffffff, #1f1f2e — Pastels pushed to the saturated end — pink, sky and lemon — for brands that want soft AND loud. — tool: https://brandsweets.com/palettes/new/ff9fb2-9ad0ec-ffe08a-ffffff-1f1f2e — collection: https://brandsweets.com/palettes/pastel

## 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/181c2b-9ca0c4-df7a4e-221f2d-e9eff1?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: "#181c2b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.