# #21132b

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

## Values

- Hex: `#21132b`
- RGB: rgb(33, 19, 43)
- HSL: hsl(275, 39%, 12%)
- OKLCH: oklch(0.218 0.049 309.8)
- Relative luminance: 0.0096
- Nearest named color: Midnight Monarch (#1c0f33, Δ 2.483) — https://brandsweets.com/colors/midnight-monarch
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/21132b

## Tints & shades

- Tints (toward white): #39214a, #4f2d67, #673b87, #7d48a3, #945fb9, #a97fc7, #bc9cd3, #d2bce1, #e5d8ee, #faf8fc
- Shades (toward black): #1e1127, #1b1023, #1b1023, #180e20, #160c1c, #130b19, #100915, #100915, #0e0812, #0b060e

## Harmonies

- Complementary: #1d2b13
- Analogous: #15132b, #2b1329
- Triadic: #2b2113, #132b21
- Split-complementary: #292b13, #132b15
- Tetradic: #2b1513, #1d2b13, #13292b

## Colors that go with #21132b

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 #21132b: 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 #21132b 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 #21132b — 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 #21132b'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 #21132b: 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 #21132b 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), Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-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 #21132b, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), Signal (https://brandsweets.com/colors/brands/signal-org). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #21132b 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): 17.61:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.19:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #945fb9 (4.6:1); AA: background → #828282 (4.58:1); AAA: text → #ae86ca (7.06:1); AAA: background → #a6a6a6 (7.23:1)

## 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/21132b-b89cc4-c0cb62-2d1f2d-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: "#21132b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.