# #0d210f

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

## Values

- Hex: `#0d210f`
- RGB: rgb(13, 33, 15)
- HSL: hsl(126, 43%, 9%)
- OKLCH: oklch(0.225 0.043 146.1)
- Relative luminance: 0.0121
- Nearest named color: Nightmare (#112211, Δ 0.753) — https://brandsweets.com/colors/nightmare
- Moods: dark, luxury, bold
- Page: https://brandsweets.com/colors/0d210f

## Tints & shades

- Tints (toward white): #1a421e, #27622d, #34833c, #41a44b, #57bc61, #74c87d, #95d59c, #b6e2ba, #d7efd9, #f8fcf8
- Shades (toward black): #0d210f, #0c1d0d, #0c1d0d, #0a1a0c, #0a1a0c, #09160a, #09160a, #071208, #071208, #060f07

## Harmonies

- Complementary: #210d1f
- Analogous: #15210d, #0d2119
- Triadic: #0f0d21, #210f0d
- Split-complementary: #190d21, #210d15
- Tetradic: #0d1521, #210d1f, #21190d

## Colors that go with #0d210f

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 #0d210f: 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), Gusto (https://brandsweets.com/colors/brands/gusto-com), Logitech (https://brandsweets.com/colors/brands/logitech-com). — https://brandsweets.com/colors/charcoal
- **Dark Olive Green** #556b2f [harmony, pool: analogous] — Dark Olive Green is #0d210f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth). — https://brandsweets.com/colors/darkolivegreen
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #0d210f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Signal (https://brandsweets.com/colors/brands/signal-org), Spectrum (https://brandsweets.com/colors/brands/spectrum-com), Yahoo (https://brandsweets.com/colors/brands/yahoo-com), Nokia (https://brandsweets.com/colors/brands/nokia-com). — https://brandsweets.com/colors/royalblue
- **Rust** #b7410e [harmony, pool: triadic] — Rust completes a triad with #0d210f — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Trailhead (https://brandsweets.com/palettes/warm#trailhead), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Gallery (https://brandsweets.com/palettes/editorial#gallery), Harvest (https://brandsweets.com/palettes/warm#harvest). — https://brandsweets.com/colors/rust
- **Slate Blue** #6a5acd [harmony, pool: split] — Slate Blue is a split-complement of #0d210f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: GitLab (https://brandsweets.com/colors/brands/gitlab), Calm (https://brandsweets.com/colors/brands/calm-com), Marvel (https://brandsweets.com/colors/brands/marvel-com), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas). — https://brandsweets.com/colors/slateblue
- **Teal** #008080 [harmony, pool: analogous] — Teal is #0d210f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: 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), Perplexity (https://brandsweets.com/colors/brands/perplexity). — https://brandsweets.com/colors/teal
- **Dark Orchid** #9932cc [harmony, pool: complementary] — Dark Orchid sits directly opposite #0d210f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Linkedin (https://brandsweets.com/colors/brands/linkedin-com), Peacock (https://brandsweets.com/palettes/vivid#peacock), Laser (https://brandsweets.com/palettes/vivid#laser). — https://brandsweets.com/colors/darkorchid
- **Amber** #ffbf00 [pool] — Amber is paired with #0d210f in 18 real palettes, including Trailhead and Warner Bros.'s brand system, as the accent. Seen in: Trailhead (https://brandsweets.com/palettes/warm#trailhead), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Google (https://brandsweets.com/colors/brands/google-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/amber

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

- On white (#ffffff): 16.91:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.24:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #36873e (4.69:1); AA: background → #858585 (4.58:1); AAA: text → #44ab4f (7.18:1); AAA: background → #a8a8a8 (7.11:1)

## 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/0d210f-a2bea8-a74edf-1f2d27-ecf1e9?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: "#0d210f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.