# #3f030d

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

## Values

- Hex: `#3f030d`
- RGB: rgb(63, 3, 13)
- HSL: hsl(350, 91%, 13%)
- OKLCH: oklch(0.237 0.089 18.5)
- Relative luminance: 0.0115
- Nearest named color: English Breakfast (#441111, Δ 3.117) — https://brandsweets.com/colors/english-breakfast
- Moods: warm, vivid, dark, playful, bold, luxury
- Page: https://brandsweets.com/colors/3f030d

## Tints & shades

- Tints (toward white): #6b0516, #92071e, #be0927, #e50b2f, #f5294b, #f7506c, #f97b90, #fba2b1, #fdced6, #fff5f7
- Shades (toward black): #3a030c, #36030b, #31020a, #2c0209, #2c0209, #270208, #220207, #1d0106, #180105, #130104

## Harmonies

- Complementary: #033f35
- Analogous: #3f032b, #3f1703
- Triadic: #0d3f03, #030d3f
- Split-complementary: #033f17, #032b3f
- Tetradic: #2b3f03, #033f35, #17033f

## Colors that go with #3f030d

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 #3f030d: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Gusto (https://brandsweets.com/colors/brands/gusto-com), HubSpot (https://brandsweets.com/colors/brands/hubspot-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), Logitech (https://brandsweets.com/colors/brands/logitech-com). — https://brandsweets.com/colors/charcoal
- **Royal Blue** #4169e1 [harmony, pool: triadic] — Royal Blue completes a triad with #3f030d — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Headspace (https://brandsweets.com/colors/brands/headspace-com), Signal (https://brandsweets.com/colors/brands/signal-org), Yahoo (https://brandsweets.com/colors/brands/yahoo-com), Nokia (https://brandsweets.com/colors/brands/nokia-com). — https://brandsweets.com/colors/royalblue
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #3f030d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Wellness (https://brandsweets.com/palettes/warm#wellness), Next.js (https://brandsweets.com/colors/brands/nextjs-org), Mushroom (https://brandsweets.com/palettes/neutral#mushroom), Asana (https://brandsweets.com/colors/brands/asana-com). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: analogous] — Sienna is #3f030d's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Harvest (https://brandsweets.com/palettes/warm#harvest), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), BrandSweets (https://brandsweets.com/colors/brands/brandsweets), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar). — https://brandsweets.com/colors/sienna
- **Steel Blue** #4682b4 [harmony, pool: split] — Steel Blue is a split-complement of #3f030d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Launch Orange (https://brandsweets.com/palettes/bold#launch-orange), Lemon Squeezy (https://brandsweets.com/colors/brands/lemonsqueezy-com). — https://brandsweets.com/colors/steelblue
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #3f030d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Saffron (https://brandsweets.com/palettes/warm#saffron), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Gusto (https://brandsweets.com/colors/brands/gusto-com), Mid-Century (https://brandsweets.com/palettes/warm#mid-century). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #3f030d in 16 real palettes, including Maple and Heatwave, as the accent. Seen in: Maple (https://brandsweets.com/palettes/warm#maple), Heatwave (https://brandsweets.com/palettes/warm#heatwave), Trailhead (https://brandsweets.com/palettes/warm#trailhead), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 17 real palettes, including Tim Hortons's brand system and Headspace's brand system put Blue beside #3f030d, as the accent. Seen in: Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), Bumble (https://brandsweets.com/colors/brands/bumble-com), Rolex (https://brandsweets.com/colors/brands/rolex-com). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 17.07:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.23:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #ea0b30 (4.59:1); AA: background → #858585 (4.63:1); AAA: text → #f8637c (7.07:1); AAA: background → #a6a6a6 (7.01:1)

## Brands using this color

- **Hershey's** — primary #3f000b (Δ 0.577) — https://brandsweets.com/colors/brands/hersheys-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/3f030d-c49c9e-62cb87-2d231f-f1e9ee?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: "#3f030d" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.