# #21132a

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

## Values

- Hex: `#21132a`
- RGB: rgb(33, 19, 42)
- HSL: hsl(277, 38%, 12%)
- OKLCH: oklch(0.217 0.047 311)
- Relative luminance: 0.0096
- Nearest named color: Dark Prom Queen (#2b0f2e, Δ 2.584) — https://brandsweets.com/colors/dark-prom-queen
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/21132a

## Tints & shades

- Tints (toward white): #3a214a, #512e66, #693c86, #8049a2, #9661b8, #ab80c6, #be9cd3, #d3bce1, #e5d8ee, #faf8fc
- Shades (toward black): #1f1127, #1c1023, #1c1023, #190e20, #160d1c, #130b19, #110915, #110915, #0e0812, #0b060e

## Harmonies

- Complementary: #1c2a13
- Analogous: #16132a, #2a1328
- Triadic: #2a2113, #132a21
- Split-complementary: #282a13, #132a16
- Tetradic: #2a1613, #1c2a13, #13282a

## Colors that go with #21132a

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 #21132a: 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), PlayStation® Official Site: Consoles, Games, Accessories & MoreSony Interactive Entertainment (https://brandsweets.com/colors/brands/playstation-com). — https://brandsweets.com/colors/charcoal
- **Dark Olive Green** #556b2f [harmony, pool: complementary] — Dark Olive Green sits directly opposite #21132a 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 #21132a — 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 #21132a's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Sentry (https://brandsweets.com/colors/brands/sentry-io), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), 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 #21132a: 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 #21132a 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), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 21 real palettes, including Warp's brand system and League of Legends's brand system put Blue beside #21132a, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com), Signal (https://brandsweets.com/colors/brands/signal-org), Monzo (https://brandsweets.com/colors/brands/monzo-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #21132a 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), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Prepare your taste buds... (https://brandsweets.com/colors/brands/grubhub-com). — https://brandsweets.com/colors/blueviolet

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

- On white (#ffffff): 17.63:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.19:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #945db6 (4.5:1); AA: background → #828282 (4.59:1); AAA: text → #b087c9 (7.16:1); AAA: background → #a6a6a6 (7.24:1)

## Curated palettes containing it

- **Dusk Gradient** (sunset, dark, warm, bold) — #ff7b54, #ffb26b, #7c3e8a, #1b1230, #ffefe0 — Orange and peach on indigo-black with a violet — the last five minutes of a sunset, as a dark mode. — tool: https://brandsweets.com/palettes/new/ff7b54-ffb26b-7c3e8a-1b1230-ffefe0 — collection: https://brandsweets.com/palettes/sunset

## Fonts for this mood

- luxury: https://brandsweets.com/fonts/mood/luxury
- bold: https://brandsweets.com/fonts/mood/bold
- modern: https://brandsweets.com/fonts/mood/modern

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/21132a-b99cc4-bdcb62-2d1f2c-eae9f1?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: "#21132a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.