# #3f421f

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

## Values

- Hex: `#3f421f`
- RGB: rgb(63, 66, 31)
- HSL: hsl(65, 36%, 19%)
- OKLCH: oklch(0.367 0.054 113.1)
- Relative luminance: 0.0505
- Nearest named color: Alligator Gladiator (#444411, Δ 1.877) — https://brandsweets.com/colors/alligator-gladiator
- Moods: dark, luxury, bold
- Page: https://brandsweets.com/colors/3f421f

## Tints & shades

- Tints (toward white): #5a5e2c, #747939, #8f9546, #a8af55, #b6bc71, #c2c889, #d1d5a5, #dfe2c1, #edefdc, #fbfcf8
- Shades (toward black): #3c3e1d, #35371a, #323418, #2b2d15, #282a14, #212310, #1e1f0f, #17180b, #14150a, #0d0e07

## Harmonies

- Complementary: #221f42
- Analogous: #42331f, #2e421f
- Triadic: #1f3f42, #421f3f
- Split-complementary: #1f2e42, #331f42
- Tetradic: #1f4233, #221f42, #421f2e

## Colors that go with #3f421f

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

- **Royal Blue** #4169e1 [harmony, pool: split] — Royal Blue is a split-complement of #3f421f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Docker (https://brandsweets.com/colors/brands/docker-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), Disney (https://brandsweets.com/colors/brands/disney-com), Rotten Tomatoes (https://brandsweets.com/colors/brands/rottentomatoes-com). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: analogous] — Sea Green is #3f421f's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Mushroom (https://brandsweets.com/palettes/neutral#mushroom), Asana (https://brandsweets.com/colors/brands/asana-com), Jack Daniel's (https://brandsweets.com/colors/brands/jackdaniels-com), Wellness (https://brandsweets.com/palettes/warm#wellness). — https://brandsweets.com/colors/seagreen
- **Slate Blue** #6a5acd [harmony, pool: complementary] — Slate Blue sits directly opposite #3f421f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Superhuman (https://brandsweets.com/colors/brands/superhuman-com). — https://brandsweets.com/colors/slateblue
- **Blue** #0000ff [pool] — 8 real palettes, including Dunkin''s brand system and Jeep's brand system put Blue beside #3f421f, as the supporting colour. Seen in: Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Jeep (https://brandsweets.com/colors/brands/jeep-com), Instacart (https://brandsweets.com/colors/brands/instacart-com), Minecraft (https://brandsweets.com/colors/brands/minecraft-net). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 4 real palettes, including Garden Wedding and Nursery put Blush Pink beside #3f421f, as the supporting colour. Seen in: Garden Wedding (https://brandsweets.com/palettes/light#garden-wedding), Nursery (https://brandsweets.com/palettes/light#nursery), Rain Garden (https://brandsweets.com/palettes/cool#rain-garden), Blush (https://brandsweets.com/palettes/light#blush). — https://brandsweets.com/colors/blush-pink
- **Copper** #b87333 [pool] — Designers have shipped Copper with #3f421f: 7 real palettes, including Notion's brand system and Bakery. Seen in: Notion (https://brandsweets.com/colors/brands/notion), Bakery (https://brandsweets.com/palettes/warm#bakery), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty), Riverbed (https://brandsweets.com/palettes/muted#riverbed). — https://brandsweets.com/colors/copper
- **Crimson** #dc143c [pool] — Crimson is paired with #3f421f in 10 real palettes, including Dunkin''s brand system and Codecademy's brand system, as the accent. Seen in: Dunkin' (https://brandsweets.com/colors/brands/dunkindonuts-com), Codecademy (https://brandsweets.com/colors/brands/codecademy-com), Burger King (https://brandsweets.com/colors/brands/bk-com), MAC Cosmetics (https://brandsweets.com/colors/brands/maccosmetics-com). — https://brandsweets.com/colors/crimson
- **Cream** #fffdd0 [role] — Cream is the surface #3f421f wants: a warm off-white that shares its undertone, so #3f421f reads softer on it than on pure white. — https://brandsweets.com/colors/cream

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

- On white (#ffffff): 10.45:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 2.01:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #747939 (4.54:1); AA: background → #ababab (4.55:1); AAA: text → #959c49 (7.13:1); AAA: background → #d4d4d4 (7.05:1)

## 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/3f421f-b8bea2-4e88df-262d1f-f1eee9?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: "#3f421f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.