# #280f33

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

## Values

- Hex: `#280f33`
- RGB: rgb(40, 15, 51)
- HSL: hsl(282, 55%, 13%)
- OKLCH: oklch(0.226 0.072 314.2)
- Relative luminance: 0.0103
- Nearest named color: Dark Prom Queen (#2b0f2e, Δ 1.244) — https://brandsweets.com/colors/dark-prom-queen
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/280f33

## Tints & shades

- Tints (toward white): #441957, #5d2277, #792d9a, #9236ba, #a751cd, #b771d6, #c994e0, #d9b4e9, #ebd7f4, #fbf7fd
- Shades (toward black): #250e2f, #220d2b, #1f0b28, #1c0a24, #1c0a24, #190920, #16081c, #130718, #100614, #0c0510

## Harmonies

- Complementary: #1a330f
- Analogous: #160f33, #330f2c
- Triadic: #33280f, #0f3328
- Split-complementary: #2c330f, #0f3316
- Tetradic: #33160f, #1a330f, #0f2c33

## Colors that go with #280f33

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 #280f33: softer than #000 and cool enough to feel like part of the same palette. Seen in: Volkswagen (https://brandsweets.com/colors/brands/vw-com), Asana (https://brandsweets.com/colors/brands/asana-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Audi (https://brandsweets.com/colors/brands/audi-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: complementary] — Sea Green sits directly opposite #280f33 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Next.js (https://brandsweets.com/colors/brands/nextjs-org), Subaru (https://brandsweets.com/colors/brands/subaru-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: triadic] — Sienna completes a triad with #280f33 — 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), Harvest (https://brandsweets.com/palettes/warm#harvest). — https://brandsweets.com/colors/sienna
- **Slate Blue** #6a5acd [harmony, pool: analogous] — Slate Blue is #280f33'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), Superhuman (https://brandsweets.com/colors/brands/superhuman-com). — https://brandsweets.com/colors/slateblue
- **Teal** #008080 [harmony, pool: split] — Teal is a split-complement of #280f33: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Clinic (https://brandsweets.com/palettes/clean#clinic), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Alpine (https://brandsweets.com/palettes/cool#alpine), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #280f33 in 18 real palettes, including Southwest Airlines's brand system and Blueprint, as the accent. Seen in: Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-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 Sketch's brand system put Blue beside #280f33, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), Sketch (https://brandsweets.com/colors/brands/sketch-com), Penpot (https://brandsweets.com/colors/brands/penpot-app), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com). — https://brandsweets.com/colors/blue
- **Blue Violet** #8a2be2 [pool] — Blue Violet is paired with #280f33 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): 17.41:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.21:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #a54dcb (4.52:1); AA: background → #828282 (4.53:1); AAA: text → #bd7dd9 (7.1:1); AAA: background → #a6a6a6 (7.15:1)

## 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/280f33-ba9fc1-b4cb62-2d1f2b-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: "#280f33" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.