# #3f510b

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

## Values

- Hex: `#3f510b`
- RGB: rgb(63, 81, 11)
- HSL: hsl(75, 76%, 18%)
- OKLCH: oklch(0.405 0.094 123.7)
- Relative luminance: 0.0697
- Nearest named color: Godzilla (#3c4d03, Δ 1.399) — https://brandsweets.com/colors/godzilla
- Moods: vivid, dark, luxury, bold
- Page: https://brandsweets.com/colors/3f510b

## Tints & shades

- Tints (toward white): #5b7510, #789915, #94bc1a, #b0e01f, #bde543, #c9ea66, #d6ef8a, #e3f4ae, #eff9d2, #fcfef6
- Shades (toward black): #3c4c0a, #354309, #313f09, #2a3607, #273107, #232d06, #1c2405, #191f04, #121603, #0e1202

## Harmonies

- Complementary: #1c0b51
- Analogous: #513f0b, #1c510b
- Triadic: #0b3f51, #510b3f
- Split-complementary: #0b1c51, #3f0b51
- Tetradic: #0b513f, #1c0b51, #510b1c

## Colors that go with #3f510b

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Blue** #0000ff [pool] — 5 real palettes, including Rolex's brand system and Warp's brand system put Blue beside #3f510b, as the accent. Seen in: Rolex (https://brandsweets.com/colors/brands/rolex-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Jeep (https://brandsweets.com/colors/brands/jeep-com), Instacart (https://brandsweets.com/colors/brands/instacart-com). — https://brandsweets.com/colors/blue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #3f510b: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Pampers (https://brandsweets.com/colors/brands/pampers-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Stanley (https://brandsweets.com/colors/brands/stanley1913-com). — https://brandsweets.com/colors/charcoal
- **Emerald Green** #50c878 [pool] — Emerald Green is paired with #3f510b in 4 real palettes, including CircleCI's brand system and Neon's brand system, as the supporting colour. Seen in: CircleCI (https://brandsweets.com/colors/brands/circleci-com), Neon (https://brandsweets.com/colors/brands/neon-tech), Chime (https://brandsweets.com/colors/brands/chime-com), WhatsApp (https://brandsweets.com/colors/brands/whatsapp-com). — https://brandsweets.com/colors/emerald-green
- **Saddle Brown** #8b4513 [pool] — Designers have shipped Saddle Brown with #3f510b: 4 real palettes, including Bookshop and Domino's's brand system, as the lead colour. Seen in: Bookshop (https://brandsweets.com/palettes/editorial#bookshop), Domino's (https://brandsweets.com/colors/brands/dominos-com), Darkroom (https://brandsweets.com/palettes/muted#darkroom), Cider (https://brandsweets.com/palettes/warm#cider). — https://brandsweets.com/colors/saddlebrown
- **Sage Green** #9caf88 [pool] — Designers have shipped Sage Green with #3f510b: 6 real palettes, including Pine & Birch and Stone, as the supporting colour. Seen in: Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), Stone (https://brandsweets.com/palettes/neutral#stone), Darkroom (https://brandsweets.com/palettes/muted#darkroom), Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding). — https://brandsweets.com/colors/sage-green
- **Blue Violet** #8a2be2 [harmony: complementary] — Blue Violet sits directly opposite #3f510b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. — https://brandsweets.com/colors/blueviolet
- **Royal Blue** #4169e1 [harmony, pool: split] — Royal Blue is a split-complement of #3f510b: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Console Light (https://brandsweets.com/palettes/technical#console-light). — https://brandsweets.com/colors/royalblue
- **Champagne** #f7e7ce [pool] — 3 real palettes, including Sweetgreen's brand system and Darkroom put Champagne beside #3f510b, as the supporting colour. Seen in: Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Darkroom (https://brandsweets.com/palettes/muted#darkroom), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/champagne

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

- On white (#ffffff): 8.78:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.39:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #637e11 (4.52:1); AA: background → #bababa (4.52:1); AAA: text → #7fa216 (7.08:1); AAA: background → #e6e6e6 (7.03:1)

## Curated palettes containing it

- **Trailhead** (warm, bold, vivid) — #c2410c, #365314, #fbbf24, #f4efe6, #1f1a12 — Rust, pine and sun — high-visibility earth tones that read at a distance and on a trail sign. — tool: https://brandsweets.com/palettes/new/c2410c-365314-fbbf24-f4efe6-1f1a12 — collection: https://brandsweets.com/palettes/warm

## 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/3f510b-b4bea2-4e70df-242d1f-f1efe9?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: "#3f510b" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.