# #511f01

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

## Values

- Hex: `#511f01`
- RGB: rgb(81, 31, 1)
- HSL: hsl(23, 98%, 16%)
- OKLCH: oklch(0.309 0.085 46.7)
- Relative luminance: 0.0273
- Nearest named color: Evil Cigar (#522000, Δ 0.385) — https://brandsweets.com/colors/evil-cigar
- Moods: warm, vivid, dark, playful, bold, luxury
- Page: https://brandsweets.com/colors/511f01

## Tints & shades

- Tints (toward white): #792f01, #a23f02, #cf5102, #f76002, #fd7826, #fd914e, #feaa77, #fec7a4, #fee0cd, #fff9f5
- Shades (toward black): #4c1e01, #471c01, #3d1801, #381601, #321401, #2d1200, #281000, #1e0c00, #190a00, #140800

## Harmonies

- Complementary: #013251
- Analogous: #51010a, #514701
- Triadic: #01511f, #1f0151
- Split-complementary: #015147, #010a51
- Tetradic: #0a5101, #013251, #470151

## Colors that go with #511f01

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 #511f01: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Squarespace (https://brandsweets.com/colors/brands/squarespace-com), Boeing (https://brandsweets.com/colors/brands/boeing-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), HubSpot (https://brandsweets.com/colors/brands/hubspot-com). — https://brandsweets.com/colors/charcoal
- **Crimson** #dc143c [harmony, pool: analogous] — Crimson is #511f01's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Burger King (https://brandsweets.com/colors/brands/bk-com), M&M's (https://brandsweets.com/colors/brands/mms-com), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com). — https://brandsweets.com/colors/crimson
- **Royal Blue** #4169e1 [harmony, pool: split] — Royal Blue is a split-complement of #511f01: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Headspace (https://brandsweets.com/colors/brands/headspace-com), Loom (https://brandsweets.com/colors/brands/loom-com), Chevrolet (https://brandsweets.com/colors/brands/chevrolet-com), Rotten Tomatoes (https://brandsweets.com/colors/brands/rottentomatoes-com). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: triadic] — Sea Green completes a triad with #511f01 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Mushroom (https://brandsweets.com/palettes/neutral#mushroom), Wellness (https://brandsweets.com/palettes/warm#wellness), Asana (https://brandsweets.com/colors/brands/asana-com), Subaru (https://brandsweets.com/colors/brands/subaru-com). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: analogous] — Sienna is #511f01's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Harvest (https://brandsweets.com/palettes/warm#harvest), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke). — https://brandsweets.com/colors/sienna
- **Teal** #008080 [harmony, pool: split] — Teal is a split-complement of #511f01: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Saffron (https://brandsweets.com/palettes/warm#saffron), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/teal
- **Steel Blue** #4682b4 [harmony, pool: complementary] — Steel Blue sits directly opposite #511f01 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop). — https://brandsweets.com/colors/steelblue
- **Amber** #ffbf00 [pool] — Amber is paired with #511f01 in 6 real palettes, including McDonald's's brand system and Maple, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Maple (https://brandsweets.com/palettes/warm#maple), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber

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

- On white (#ffffff): 13.58:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.55:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #ca4f02 (4.63:1); AA: background → #969696 (4.59:1); AAA: text → #fd6508 (7.04:1); AAA: background → #bdbdbd (7.23:1)

## Brands using this color

- **Burger King** — accent #502314 (Δ 1.801) — https://brandsweets.com/colors/brands/bk-com

## 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/511f01-c4b09c-62cbc0-2d2b1f-f1e9ea?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: "#511f01" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.