# #290021

A color — warm, vivid, dark, playful, bold, luxury. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#290021`
- RGB: rgb(41, 0, 33)
- HSL: hsl(312, 100%, 8%)
- OKLCH: oklch(0.191 0.084 337.4)
- Relative luminance: 0.0058
- Nearest named color: Black Sabbath (#220022, Δ 1.952) — https://brandsweets.com/colors/black-sabbath
- Moods: warm, vivid, dark, playful, bold, luxury
- Page: https://brandsweets.com/colors/290021

## Tints & shades

- Tints (toward white): #570045, #85006a, #b3008f, #e000b4, #ff0fcf, #ff3dd8, #ff6be1, #ff99eb, #ffc7f4, #fff5fd
- Shades (toward black): #290021, #24001d, #24001d, #1f0018, #1f0018, #1f0018, #190014, #190014, #140010, #140010

## Harmonies

- Complementary: #002908
- Analogous: #1d0029, #29000c
- Triadic: #212900, #002129
- Split-complementary: #0c2900, #00291d
- Tetradic: #291d00, #002908, #000c29

## Colors that go with #290021

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Blue Violet** #8a2be2 [harmony, pool: analogous] — Blue Violet is #290021's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Prepare your taste buds... (https://brandsweets.com/colors/brands/grubhub-com), Klarna US (https://brandsweets.com/colors/brands/klarna-com), Taco Bell (https://brandsweets.com/colors/brands/tacobell-com). — https://brandsweets.com/colors/blueviolet
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #290021: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: PlayStation® Official Site: Consoles, Games, Accessories & MoreSony Interactive Entertainment (https://brandsweets.com/colors/brands/playstation-com), Bloomberg (https://brandsweets.com/colors/brands/bloomberg-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), dbt Labs (https://brandsweets.com/colors/brands/getdbt-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: analogous] — Crimson is #290021's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Pinterest (https://brandsweets.com/colors/brands/pinterest-com), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Formula 1 (https://brandsweets.com/colors/brands/formula1-com). — https://brandsweets.com/colors/crimson
- **Sea Green** #2e8b57 [harmony, pool: complementary] — Sea Green sits directly opposite #290021 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Next.js (https://brandsweets.com/colors/brands/nextjs-org), Asana (https://brandsweets.com/colors/brands/asana-com), Coinbase (https://brandsweets.com/colors/brands/coinbase). — https://brandsweets.com/colors/seagreen
- **Teal** #008080 [harmony, pool: split] — Teal is a split-complement of #290021: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Clinic (https://brandsweets.com/palettes/clean#clinic), Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Redfin (https://brandsweets.com/colors/brands/redfin-com). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #290021 in 16 real palettes, including Lemon Squeezy's brand system and Southwest Airlines's brand system, as the lead colour. Seen in: Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com), Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Ember (https://brandsweets.com/palettes/bold#ember). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 20 real palettes, including Warp's brand system and League of Legends's brand system put Blue beside #290021, as the supporting colour. Seen in: Warp (https://brandsweets.com/colors/brands/warp-dev), League of Legends (https://brandsweets.com/colors/brands/leagueoflegends-com), Penpot (https://brandsweets.com/colors/brands/penpot-app), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com). — https://brandsweets.com/colors/blue
- **Brown** #a52a2a [pool] — 4 real palettes, including Garnet and Velvet put Brown beside #290021, as the lead colour. Seen in: Garnet (https://brandsweets.com/palettes/warm#garnet), Velvet (https://brandsweets.com/palettes/luxury#velvet), State Farm (https://brandsweets.com/colors/brands/statefarm-com), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke). — https://brandsweets.com/colors/brown

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

- On white (#ffffff): 18.81:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.12:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #db00af (4.63:1); AA: background → #7d7d7d (4.57:1); AAA: text → #ff42d9 (7.03:1); AAA: background → #9e9e9e (7.02:1)

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- playful: https://brandsweets.com/fonts/mood/playful
- bold: https://brandsweets.com/fonts/mood/bold
- luxury: https://brandsweets.com/fonts/mood/luxury

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/290021-c19fb6-80cb62-2d1f24-efe9f1?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: "#290021" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.