# #03211c

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

## Values

- Hex: `#03211c`
- RGB: rgb(3, 33, 28)
- HSL: hsl(170, 83%, 7%)
- OKLCH: oklch(0.224 0.037 179.8)
- Relative luminance: 0.0119
- Nearest named color: Nightmare (#112211, Δ 2.474) — https://brandsweets.com/colors/nightmare
- Moods: vivid, dark, luxury, bold
- Page: https://brandsweets.com/colors/03211c

## Tints & shades

- Tints (toward white): #074b3f, #0b7563, #0f9f87, #13c9aa, #24ebc9, #4eefd4, #78f2de, #a2f6e8, #ccfaf2, #f6fefd
- Shades (toward black): #03211c, #031c18, #031c18, #031c18, #031c18, #021714, #021714, #021714, #021310, #021310

## Harmonies

- Complementary: #210308
- Analogous: #03210d, #031721
- Triadic: #1c0321, #211c03
- Split-complementary: #210317, #210d03
- Tetradic: #0d0321, #210308, #172103

## Colors that go with #03211c

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: triadic] — Blue Violet completes a triad with #03211c — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Yahoo (https://brandsweets.com/colors/brands/yahoo-com), ClickUp (https://brandsweets.com/colors/brands/clickup-com), Prepare your taste buds... (https://brandsweets.com/colors/brands/grubhub-com), Klarna US (https://brandsweets.com/colors/brands/klarna-com). — https://brandsweets.com/colors/blueviolet
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #03211c: softer than #000 and cool enough to feel like part of the same palette. Seen in: Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Vimeo (https://brandsweets.com/colors/brands/vimeo-com), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Logitech (https://brandsweets.com/colors/brands/logitech-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: split] — Crimson is a split-complement of #03211c: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner), Huawei (https://brandsweets.com/colors/brands/huawei-com), Chase (https://brandsweets.com/colors/brands/chase-com), Formula 1 (https://brandsweets.com/colors/brands/formula1-com). — https://brandsweets.com/colors/crimson
- **Sea Green** #2e8b57 [harmony, pool: analogous] — Sea Green is #03211c's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Next.js (https://brandsweets.com/colors/brands/nextjs-org), Subaru (https://brandsweets.com/colors/brands/subaru-com), Kia (https://brandsweets.com/colors/brands/kia-com). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: triadic] — Sienna completes a triad with #03211c — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Oatly (https://brandsweets.com/colors/brands/oatly-com). — https://brandsweets.com/colors/sienna
- **Teal** #008080 [harmony, pool: analogous] — Teal is #03211c's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Perplexity (https://brandsweets.com/colors/brands/perplexity), N26 (https://brandsweets.com/colors/brands/n26-com), Gusto (https://brandsweets.com/colors/brands/gusto-com), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre). — https://brandsweets.com/colors/teal
- **Medium Violet Red** #c71585 [harmony, pool: complementary] — Medium Violet Red sits directly opposite #03211c on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: T-Mobile (https://brandsweets.com/colors/brands/t-mobile-com), Bun (https://brandsweets.com/colors/brands/bun-sh). — https://brandsweets.com/colors/mediumvioletred
- **Amber** #ffbf00 [pool] — Amber is paired with #03211c in 18 real palettes, including Warner Bros.'s brand system and Google's brand system, as the accent. Seen in: 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), Trailhead (https://brandsweets.com/palettes/warm#trailhead). — https://brandsweets.com/colors/amber

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

- On white (#ffffff): 16.96:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.24:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #0d8773 (4.73:1); AA: background → #858585 (4.6:1); AAA: text → #10a88f (7.02:1); AAA: background → #a8a8a8 (7.13:1)

## Curated palettes containing it

- **Mint Modern** (modern, clean, friendly) — #10b981, #134e4a, #f59e0b, #ffffff, #10231b — Emerald as a primary rather than a success color, anchored by deep teal text — fresh, friendly, and fintech-adjacent. — tool: https://brandsweets.com/palettes/new/10b981-134e4a-f59e0b-ffffff-10231b — collection: https://brandsweets.com/palettes/modern

## 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/03211c-a2bebd-d459a9-1f292d-e9f1ec?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: "#03211c" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.