# #21272b

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

## Values

- Hex: `#21272b`
- RGB: rgb(33, 39, 43)
- HSL: hsl(204, 13%, 15%)
- OKLCH: oklch(0.268 0.011 237.1)
- Relative luminance: 0.0195
- Nearest named color: Black Pearl (#1e272c, Δ 0.502) — https://brandsweets.com/colors/black-pearl
- Moods: cool, muted, dark, luxury, bold
- Page: https://brandsweets.com/colors/21272b

## Tints & shades

- Tints (toward white): #333c42, #47545c, #596973, #6a7e8a, #8394a0, #9aa8b1, #b1bcc3, #c8d0d5, #e2e6e9, #f9fafb
- Shades (toward black): #1f2528, #1d2225, #1b1f23, #181d20, #161a1d, #121517, #101214, #0d1011, #0b0d0e, #090a0c

## Harmonies

- Complementary: #2b2521
- Analogous: #212b2a, #21222b
- Triadic: #2b2127, #272b21
- Split-complementary: #2b2122, #2b2a21
- Tetradic: #2a212b, #2b2521, #222b21

## Colors that go with #21272b

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 #21272b without the hard edge of pure #000. Seen in: Boeing (https://brandsweets.com/colors/brands/boeing-com), Squarespace (https://brandsweets.com/colors/brands/squarespace-com), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #21272b in 18 real palettes, including McDonald's's brand system and Wikipedia's brand system, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 23 real palettes, including Readymag's brand system and Rolex's brand system put Blue beside #21272b, as the supporting colour. Seen in: Readymag (https://brandsweets.com/colors/brands/readymag-com), Rolex (https://brandsweets.com/colors/brands/rolex-com), Bumble (https://brandsweets.com/colors/brands/bumble-com), Headspace (https://brandsweets.com/colors/brands/headspace-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #21272b 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 #21272b, 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 #21272b, 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 #21272b in 6 real palettes, including Chalkboard and Kiln, as the lead colour. Seen in: Chalkboard (https://brandsweets.com/palettes/dark#chalkboard), Kiln (https://brandsweets.com/palettes/dark#kiln), Coastal (https://brandsweets.com/palettes/cool#coastal), Polaroid (https://brandsweets.com/palettes/light#polaroid). — https://brandsweets.com/colors/burlywood
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #21272b: 10 real palettes, including Dusk and Paper & Pine, as the supporting colour. Seen in: Dusk (https://brandsweets.com/palettes/cool#dusk), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), SoFi (https://brandsweets.com/colors/brands/sofi-com), Alpine (https://brandsweets.com/palettes/cool#alpine). — https://brandsweets.com/colors/cadetblue

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

- On white (#ffffff): 15.11:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.39:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #667885 (4.59:1); AA: background → #8f8f8f (4.67:1); AAA: text → #8999a4 (7.16:1); AAA: background → #b3b3b3 (7.21:1)

## Brands using this color

- **American Eagle** — primary #24272a (Δ 0.524) — https://brandsweets.com/colors/brands/ae-com
- **American Eagle** — text #24272a (Δ 0.524) — https://brandsweets.com/colors/brands/ae-com
- **7-Eleven** — primary #212529 (Δ 0.696) — https://brandsweets.com/colors/brands/7-eleven-com
- **7-Eleven** — text #212529 (Δ 0.696) — https://brandsweets.com/colors/brands/7-eleven-com
- **AMD** — primary #212529 (Δ 0.696) — https://brandsweets.com/colors/brands/amd-com
- **AMD** — text #212529 (Δ 0.696) — https://brandsweets.com/colors/brands/amd-com
- **Boeing** — text #212529 (Δ 0.696) — https://brandsweets.com/colors/brands/boeing-com
- **Calvin Klein** — primary #212529 (Δ 0.696) — https://brandsweets.com/colors/brands/calvinklein-us
- **Calvin Klein** — text #212529 (Δ 0.696) — https://brandsweets.com/colors/brands/calvinklein-us
- **Datadog** — text #212529 (Δ 0.696) — https://brandsweets.com/colors/brands/datadoghq-com
- **Tommy Hilfiger** — primary #212529 (Δ 0.696) — https://brandsweets.com/colors/brands/tommy-com
- **Tommy Hilfiger** — text #212529 (Δ 0.696) — https://brandsweets.com/colors/brands/tommy-com
- **Trader Joe's** — primary #212529 (Δ 0.696) — https://brandsweets.com/colors/brands/traderjoes-com
- **Trader Joe's** — text #212529 (Δ 0.696) — https://brandsweets.com/colors/brands/traderjoes-com
- **Zed** — text #242529 (Δ 0.787) — https://brandsweets.com/colors/brands/zed-dev
- **Vodafone** — text #25282b (Δ 0.803) — https://brandsweets.com/colors/brands/vodafone-com
- **Subaru** — text #1d252c (Δ 1.077) — https://brandsweets.com/colors/brands/subaru-com
- **Chevrolet** — primary #262626 (Δ 1.138) — https://brandsweets.com/colors/brands/chevrolet-com
- **Chevrolet** — text #262626 (Δ 1.138) — https://brandsweets.com/colors/brands/chevrolet-com
- **Cloudflare** — text #262626 (Δ 1.138) — https://brandsweets.com/colors/brands/cloudflare
- **Obsidian** — text #262626 (Δ 1.138) — https://brandsweets.com/colors/brands/obsidian-md
- **Svelte** — text #262626 (Δ 1.138) — https://brandsweets.com/colors/brands/svelte-dev
- **Retool** — primary #242424 (Δ 1.4) — https://brandsweets.com/colors/brands/retool-com
- **Readymag** — text #282828 (Δ 1.413) — https://brandsweets.com/colors/brands/readymag-com
- **YouTube** — secondary #282828 (Δ 1.413) — https://brandsweets.com/colors/brands/youtube-com
- **GitHub** — text #1f2328 (Δ 1.466) — https://brandsweets.com/colors/brands/github
- **AT&T** — primary #1d2329 (Δ 1.617) — https://brandsweets.com/colors/brands/att-com
- **AT&T** — text #1d2329 (Δ 1.617) — https://brandsweets.com/colors/brands/att-com
- **Superhuman** — text #292827 (Δ 1.641) — https://brandsweets.com/colors/brands/superhuman-com
- **McDonald's** — text #292929 (Δ 1.687) — https://brandsweets.com/colors/brands/mcdonalds-com
- **Loom** — text #292a2e (Δ 1.853) — https://brandsweets.com/colors/brands/loom-com
- **Nespresso** — primary #1f2533 (Δ 1.896) — https://brandsweets.com/colors/brands/nespresso-com

## Curated palettes containing it

- **Chalkboard** (dark, muted, warm) — #e8c170, #a8b5a0, #f28e6b, #1f2a24, #f1ede4 — Slate green with chalk cream and a coral — nostalgic without being twee. — tool: https://brandsweets.com/palettes/new/e8c170-a8b5a0-f28e6b-1f2a24-f1ede4 — collection: https://brandsweets.com/palettes/dark
- **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

## 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/21272b-9cafc4-df4e5a-1f222d-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: "#21272b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.