# #211528

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

## Values

- Hex: `#211528`
- RGB: rgb(33, 21, 40)
- HSL: hsl(278, 31%, 12%)
- OKLCH: oklch(0.221 0.04 312.4)
- Relative luminance: 0.0101
- Nearest named color: Violet Void (#1a161d, Δ 2.79) — https://brandsweets.com/colors/violet-void
- Moods: cool, muted, dark, luxury, bold
- Page: https://brandsweets.com/colors/211528

## Tints & shades

- Tints (toward white): #3a2546, #503361, #69437f, #7f519a, #9669b0, #ab87c0, #bea1ce, #d3c0de, #e5daec, #faf8fb
- Shades (toward black): #1e1325, #1c1221, #1c1221, #19101e, #160e1b, #130c17, #110b14, #110b14, #0e0911, #0b070d

## Harmonies

- Complementary: #1c2815
- Analogous: #181528, #281526
- Triadic: #282115, #152821
- Split-complementary: #262815, #152818
- Tetradic: #281815, #1c2815, #152628

## Colors that go with #211528

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 for #211528: softer than #000 and cool enough to feel like part of the same palette. 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), Logitech (https://brandsweets.com/colors/brands/logitech-com). — https://brandsweets.com/colors/charcoal
- **Dark Olive Green** #556b2f [harmony, pool: complementary] — Dark Olive Green sits directly opposite #211528 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Cohere (https://brandsweets.com/colors/brands/cohere-com), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/darkolivegreen
- **Sienna** #a0522d [harmony, pool: triadic] — Sienna completes a triad with #211528 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Oatly (https://brandsweets.com/colors/brands/oatly-com). — https://brandsweets.com/colors/sienna
- **Slate Blue** #6a5acd [harmony, pool: analogous] — Slate Blue is #211528's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Sentry (https://brandsweets.com/colors/brands/sentry-io), GitLab (https://brandsweets.com/colors/brands/gitlab), Calm (https://brandsweets.com/colors/brands/calm-com). — https://brandsweets.com/colors/slateblue
- **Teal** #008080 [harmony, pool: split] — Teal is a split-complement of #211528: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Clinic (https://brandsweets.com/palettes/clean#clinic), N26 (https://brandsweets.com/colors/brands/n26-com), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #211528 in 18 real palettes, including Blueprint and Warner Bros.'s brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Google (https://brandsweets.com/colors/brands/google-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 21 real palettes, including Warp's brand system and Signal's brand system put Blue beside #211528, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Signal (https://brandsweets.com/colors/brands/signal-org), CVS (https://brandsweets.com/colors/brands/cvs-com), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #211528 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): 17.46:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.2:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9162ac (4.55:1); AA: background → #828282 (4.54:1); AAA: text → #ad8ac1 (7.18:1); AAA: background → #a6a6a6 (7.17:1)

## Brands using this color

- **Warp** — text #1a1522 (Δ 1.936) — https://brandsweets.com/colors/brands/warp-dev

## 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/211528-ba9cc4-bbcb62-2d1f2c-ebe9f1?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: "#211528" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.