# #21210d

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

## Values

- Hex: `#21210d`
- RGB: rgb(33, 33, 13)
- HSL: hsl(60, 43%, 9%)
- OKLCH: oklch(0.242 0.034 108.7)
- Relative luminance: 0.0144
- Nearest named color: Midnight Pines (#17240b, Δ 2.063) — https://brandsweets.com/colors/midnight-pines
- Moods: dark, luxury, bold
- Page: https://brandsweets.com/colors/21210d

## Tints & shades

- Tints (toward white): #42421a, #626227, #838334, #a4a441, #bcbc57, #c8c874, #d5d595, #e2e2b6, #efefd7, #fcfcf8
- Shades (toward black): #21210d, #1d1d0c, #1d1d0c, #1a1a0a, #1a1a0a, #161609, #161609, #121207, #121207, #0f0f06

## Harmonies

- Complementary: #0d0d21
- Analogous: #21170d, #17210d
- Triadic: #0d2121, #210d21
- Split-complementary: #0d1721, #170d21
- Tetradic: #0d2117, #0d0d21, #210d17

## Colors that go with #21210d

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 #21210d: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), HubSpot (https://brandsweets.com/colors/brands/hubspot-com). — https://brandsweets.com/colors/charcoal
- **Denim** #1560bd [harmony, pool: split] — Denim is a split-complement of #21210d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Postman (https://brandsweets.com/colors/brands/postman-com), Nikon (https://brandsweets.com/colors/brands/nikon-com), Victoria's Secret (https://brandsweets.com/colors/brands/victoriassecret-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/denim
- **Sea Green** #2e8b57 [harmony, pool: analogous] — Sea Green is #21210d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Wellness (https://brandsweets.com/palettes/warm#wellness), Next.js (https://brandsweets.com/colors/brands/nextjs-org), Subaru (https://brandsweets.com/colors/brands/subaru-com), Mushroom (https://brandsweets.com/palettes/neutral#mushroom). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: analogous] — Sienna is #21210d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Harvest (https://brandsweets.com/palettes/warm#harvest), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/sienna
- **Slate Blue** #6a5acd [harmony, pool: complementary] — Slate Blue sits directly opposite #21210d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: GitLab (https://brandsweets.com/colors/brands/gitlab), Superhuman (https://brandsweets.com/colors/brands/superhuman-com), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Calm (https://brandsweets.com/colors/brands/calm-com). — https://brandsweets.com/colors/slateblue
- **Teal** #008080 [harmony, pool: triadic] — Teal completes a triad with #21210d — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Saffron (https://brandsweets.com/palettes/warm#saffron), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Gusto (https://brandsweets.com/colors/brands/gusto-com), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #21210d in 18 real palettes, including Maple and Trailhead, as the accent. Seen in: Maple (https://brandsweets.com/palettes/warm#maple), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Google (https://brandsweets.com/colors/brands/google-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 23 real palettes, including Bumble's brand system and Rolex's brand system put Blue beside #21210d, as the supporting colour. Seen in: Bumble (https://brandsweets.com/colors/brands/bumble-com), Rolex (https://brandsweets.com/colors/brands/rolex-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), Signal (https://brandsweets.com/colors/brands/signal-org). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 16.3:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.29:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #787830 (4.53:1); AA: background → #878787 (4.54:1); AAA: text → #9d9d3f (7.33:1); AAA: background → #ababab (7.1:1)

## Curated palettes containing it

- **Forest Floor** (dark, muted, warm) — #8fae6a, #6b7a5a, #d9a05b, #1b2419, #e9e6dc — Moss and bark with a mushroom-cap amber — grounded and quiet, made for long-form nature content. — tool: https://brandsweets.com/palettes/new/8fae6a-6b7a5a-d9a05b-1b2419-e9e6dc — collection: https://brandsweets.com/palettes/dark

## Fonts for this mood

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

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/21210d-bbbea2-4e94df-272d1f-f1ede9?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: "#21210d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.