# #1b2831

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

## Values

- Hex: `#1b2831`
- RGB: rgb(27, 40, 49)
- HSL: hsl(205, 29%, 15%)
- OKLCH: oklch(0.269 0.025 239.1)
- Relative luminance: 0.0197
- Nearest named color: Black Pearl (#1e272c, Δ 0.948) — https://brandsweets.com/colors/black-pearl
- Moods: cool, muted, dark, luxury, bold
- Page: https://brandsweets.com/colors/1b2831

## Tints & shades

- Tints (toward white): #2a3d4c, #3a5669, #486b84, #57809e, #7297b1, #8caac0, #a6bdce, #c0d1dd, #dee7ed, #f8fafb
- Shades (toward black): #19252e, #18232b, #162027, #141d24, #121b21, #0e151a, #0d1317, #0b1014, #090d10, #070b0d

## Harmonies

- Complementary: #31241b
- Analogous: #1b312f, #1b1d31
- Triadic: #311b28, #28311b
- Split-complementary: #311b1d, #312f1b
- Tetradic: #2f1b31, #31241b, #1d311b

## Colors that go with #1b2831

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 #1b2831 without the hard edge of pure #000. Seen in: Boeing (https://brandsweets.com/colors/brands/boeing-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Volkswagen (https://brandsweets.com/colors/brands/vw-com), Microsoft (https://brandsweets.com/colors/brands/microsoft-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #1b2831 in 18 real palettes, including Beach Hut and McDonald's's brand system, as the supporting colour. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 24 real palettes, including Readymag's brand system and Monzo's brand system put Blue beside #1b2831, as the supporting colour. Seen in: Readymag (https://brandsweets.com/colors/brands/readymag-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), Rolex (https://brandsweets.com/colors/brands/rolex-com), Bumble (https://brandsweets.com/colors/brands/bumble-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #1b2831 in 9 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] — 7 real palettes, including Graphite Mono and Rain Garden put Blush Pink beside #1b2831, as the accent. Seen in: Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Blush (https://brandsweets.com/palettes/light#blush), Estate (https://brandsweets.com/palettes/luxury#estate). — https://brandsweets.com/colors/blush-pink
- **Brown** #a52a2a [pool] — 5 real palettes, including Typewriter and Woodsmoke put Brown beside #1b2831, as the accent. Seen in: Typewriter (https://brandsweets.com/palettes/editorial#typewriter), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Garnet (https://brandsweets.com/palettes/warm#garnet). — https://brandsweets.com/colors/brown
- **Burlywood** #deb887 [pool] — Burlywood is paired with #1b2831 in 6 real palettes, including Coastal and Chalkboard, as the accent. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Kiln (https://brandsweets.com/palettes/dark#kiln), Polaroid (https://brandsweets.com/palettes/light#polaroid). — https://brandsweets.com/colors/burlywood
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #1b2831: 10 real palettes, including Dusk and Coastal, as the supporting colour. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Coastal (https://brandsweets.com/palettes/cool#coastal), Alpine (https://brandsweets.com/palettes/cool#alpine), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/cadetblue

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

- On white (#ffffff): 15.06:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.39:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #537b97 (4.65:1); AA: background → #8f8f8f (4.66:1); AAA: text → #789cb5 (7.22:1); AAA: background → #b3b3b3 (7.18:1)

## Brands using this color

- **Subaru** — text #1d252c (Δ 1.184) — https://brandsweets.com/colors/brands/subaru-com
- **Character** — secondary #1f2937 (Δ 1.328) — https://brandsweets.com/colors/brands/character-ai
- **Nespresso** — primary #1f2533 (Δ 1.337) — https://brandsweets.com/colors/brands/nespresso-com
- **dbt Labs** — secondary #1e2939 (Δ 1.592) — https://brandsweets.com/colors/brands/getdbt-com
- **7-Eleven** — primary #212529 (Δ 1.675) — https://brandsweets.com/colors/brands/7-eleven-com
- **7-Eleven** — text #212529 (Δ 1.675) — https://brandsweets.com/colors/brands/7-eleven-com
- **AMD** — primary #212529 (Δ 1.675) — https://brandsweets.com/colors/brands/amd-com
- **AMD** — text #212529 (Δ 1.675) — https://brandsweets.com/colors/brands/amd-com
- **Boeing** — text #212529 (Δ 1.675) — https://brandsweets.com/colors/brands/boeing-com
- **Calvin Klein** — primary #212529 (Δ 1.675) — https://brandsweets.com/colors/brands/calvinklein-us
- **Calvin Klein** — text #212529 (Δ 1.675) — https://brandsweets.com/colors/brands/calvinklein-us
- **Datadog** — text #212529 (Δ 1.675) — https://brandsweets.com/colors/brands/datadoghq-com
- **Tommy Hilfiger** — primary #212529 (Δ 1.675) — https://brandsweets.com/colors/brands/tommy-com
- **Tommy Hilfiger** — text #212529 (Δ 1.675) — https://brandsweets.com/colors/brands/tommy-com
- **Trader Joe's** — primary #212529 (Δ 1.675) — https://brandsweets.com/colors/brands/traderjoes-com
- **Trader Joe's** — text #212529 (Δ 1.675) — https://brandsweets.com/colors/brands/traderjoes-com
- **American Eagle** — primary #24272a (Δ 1.769) — https://brandsweets.com/colors/brands/ae-com
- **American Eagle** — text #24272a (Δ 1.769) — https://brandsweets.com/colors/brands/ae-com
- **Vodafone** — text #25282b (Δ 1.86) — https://brandsweets.com/colors/brands/vodafone-com
- **Opera** — accent #252836 (Δ 1.931) — https://brandsweets.com/colors/brands/opera-com
- **Zed** — text #242529 (Δ 1.933) — https://brandsweets.com/colors/brands/zed-dev
- **AT&T** — primary #1d2329 (Δ 1.944) — https://brandsweets.com/colors/brands/att-com
- **AT&T** — text #1d2329 (Δ 1.944) — https://brandsweets.com/colors/brands/att-com

## Curated palettes containing it

- **Campus** (friendly, cool, clean) — #1d4ed8, #64748b, #f59e0b, #ffffff, #1e293b — Institutional blue with a highlighter-amber accent — trustworthy for parents, lively enough for students. — tool: https://brandsweets.com/palettes/new/1d4ed8-64748b-f59e0b-ffffff-1e293b — collection: https://brandsweets.com/palettes/friendly
- **Dusk** (cool, muted, elegant) — #4b5d8a, #8b97b3, #c07a4e, #eef0f4, #1f2430 — Slate blue with a copper accent — calm, professional, slightly editorial; suits consultancies and journals. — tool: https://brandsweets.com/palettes/new/4b5d8a-8b97b3-c07a4e-eef0f4-1f2430 — collection: https://brandsweets.com/palettes/cool
- **Beach Hut** (summer, light, clean, cool) — #2e86ab, #f6bd60, #f28482, #fbfcfd, #1b2a38 — Sea blue with sun-bleached yellow and a coral — striped-canvas summer, softened so it works on a screen. — tool: https://brandsweets.com/palettes/new/2e86ab-f6bd60-f28482-fbfcfd-1b2a38 — collection: https://brandsweets.com/palettes/summer
- **Tide Pool** (ocean, cool, light, clean) — #1b998b, #2d3047, #ff9b71, #f4fbf9, #1e2333 — Sea-green and slate with a coral — a literal tide pool: two cool tones, one warm creature. — tool: https://brandsweets.com/palettes/new/1b998b-2d3047-ff9b71-f4fbf9-1e2333 — collection: https://brandsweets.com/palettes/ocean

## 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/1b2831-9cafc4-df4e58-1f212d-e9f1f0?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: "#1b2831" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.