# #210a08

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

## Values

- Hex: `#210a08`
- RGB: rgb(33, 10, 8)
- HSL: hsl(5, 61%, 8%)
- OKLCH: oklch(0.182 0.04 27.1)
- Relative luminance: 0.0056
- Nearest named color: Italian Roast (#221111, Δ 2.34) — https://brandsweets.com/colors/italian-roast
- Moods: warm, vivid, dark, playful, bold, luxury
- Page: https://brandsweets.com/colors/210a08

## Tints & shades

- Tints (toward white): #461511, #6b211a, #902c23, #b5372c, #d04a3e, #d96d63, #e28f88, #ebb2ad, #f4d5d2, #fdf7f7
- Shades (toward black): #210a08, #1d0907, #1d0907, #190806, #190806, #190806, #150605, #150605, #100504, #100504

## Harmonies

- Complementary: #081f21
- Analogous: #210812, #211608
- Triadic: #08210a, #0a0821
- Split-complementary: #082116, #081221
- Tetradic: #122108, #081f21, #160821

## Colors that go with #210a08

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 body-text near-black for #210a08: 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
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #210a08 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: NHL (https://brandsweets.com/colors/brands/nhl-com), 1password (https://brandsweets.com/colors/brands/1password-com), Behance (https://brandsweets.com/colors/brands/behance-net), Brilliant (https://brandsweets.com/colors/brands/brilliant-org). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #210a08 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. 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
- **Sienna** #a0522d [harmony, pool: analogous] — Sienna is #210a08's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Oatly (https://brandsweets.com/colors/brands/oatly-com), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/sienna
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #210a08: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: American Express (https://brandsweets.com/colors/brands/americanexpress-com), Plaid (https://brandsweets.com/colors/brands/plaid-com), Wired (https://brandsweets.com/colors/brands/wired-com), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com). — https://brandsweets.com/colors/steelblue
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #210a08 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Redfin (https://brandsweets.com/colors/brands/redfin-com), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Gusto (https://brandsweets.com/colors/brands/gusto-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #210a08 in 18 real palettes, including Heatwave and Ember, as the supporting colour. Seen in: Heatwave (https://brandsweets.com/palettes/warm#heatwave), Ember (https://brandsweets.com/palettes/bold#ember), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 22 real palettes, including Robinhood's brand system and native Cybersecurity's brand system put Blue beside #210a08, as the supporting colour. Seen in: Robinhood (https://brandsweets.com/colors/brands/robinhood-com), native Cybersecurity (https://brandsweets.com/colors/brands/crowdstrike-com), EA (https://brandsweets.com/colors/brands/ea-com), Penpot (https://brandsweets.com/colors/brands/penpot-app). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 18.89:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.11:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #cf463a (4.59:1); AA: background → #7d7d7d (4.59:1); AAA: text → #dd7c73 (7.21:1); AAA: background → #9e9e9e (7.05:1)

## 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/210a08-c4a49c-62cba1-2d261f-f1e9ec?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: "#210a08" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.