# #280f2f

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

## Values

- Hex: `#280f2f`
- RGB: rgb(40, 15, 47)
- HSL: hsl(287, 52%, 12%)
- OKLCH: oklch(0.223 0.067 318.4)
- Relative luminance: 0.01
- Nearest named color: Dark Prom Queen (#2b0f2e, Δ 0.748) — https://brandsweets.com/colors/dark-prom-queen
- Moods: cool, dark, luxury, bold, modern
- Page: https://brandsweets.com/colors/280f2f

## Tints & shades

- Tints (toward white): #451a51, #602370, #7d2f93, #9838b2, #ae51c8, #be73d3, #cd92dd, #ddb5e8, #ebd4f2, #fbf7fd
- Shades (toward black): #240d2b, #210c27, #210c27, #1e0b23, #1a0a1f, #17091b, #140717, #140717, #110613, #0d0510

## Harmonies

- Complementary: #162f0f
- Analogous: #180f2f, #2f0f25
- Triadic: #2f280f, #0f2f28
- Split-complementary: #252f0f, #0f2f18
- Tetradic: #2f180f, #162f0f, #0f252f

## Colors that go with #280f2f

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 #280f2f: 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), Volkswagen (https://brandsweets.com/colors/brands/vw-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: complementary] — Sea Green sits directly opposite #280f2f 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), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Subaru (https://brandsweets.com/colors/brands/subaru-com). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: triadic] — Sienna completes a triad with #280f2f — 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 #280f2f'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 #280f2f: 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), N26 (https://brandsweets.com/colors/brands/n26-com), Alpine (https://brandsweets.com/palettes/cool#alpine). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #280f2f in 18 real palettes, including Blueprint and Southwest Airlines's brand system, as the accent. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), 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 #280f2f, 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 #280f2f 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): 17.51:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.2:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #ac4dc7 (4.64:1); AA: background → #828282 (4.56:1); AAA: text → #c27bd5 (7.09:1); AAA: background → #a6a6a6 (7.19:1)

## 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/280f2f-bd9fc1-abcb62-2d1f2a-ece9f1?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: "#280f2f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.