# #370b35

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

## Values

- Hex: `#370b35`
- RGB: rgb(55, 11, 53)
- HSL: hsl(303, 67%, 13%)
- OKLCH: oklch(0.247 0.09 329.8)
- Relative luminance: 0.0131
- Nearest named color: Dark Purple (#35063e, Δ 2.172) — https://brandsweets.com/colors/dark-purple
- Moods: warm, vivid, dark, playful, bold, luxury
- Page: https://brandsweets.com/colors/370b35

## Tints & shades

- Tints (toward white): #5e135a, #80197b, #a6219f, #c828c0, #da44d2, #e166db, #e88ce4, #efaeec, #f7d4f5, #fdf6fd
- Shades (toward black): #330a31, #2f092d, #2b0829, #260825, #260825, #220721, #1e061d, #1a0519, #150414, #110310

## Harmonies

- Complementary: #0b370d
- Analogous: #230b37, #370b1f
- Triadic: #35370b, #0b3537
- Split-complementary: #1f370b, #0b3723
- Tetradic: #37230b, #0b370d, #0b1f37

## Colors that go with #370b35

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: analogous] — Blue Violet is #370b35's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: ClickUp (https://brandsweets.com/colors/brands/clickup-com), Yahoo (https://brandsweets.com/colors/brands/yahoo-com), Gemstone (https://brandsweets.com/palettes/vivid#gemstone), Prepare your taste buds... (https://brandsweets.com/colors/brands/grubhub-com). — https://brandsweets.com/colors/blueviolet
- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #370b35: softer than #000 and cool enough to feel like part of the same palette. Seen in: Volkswagen (https://brandsweets.com/colors/brands/vw-com), Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Audi (https://brandsweets.com/colors/brands/audi-com), Microsoft (https://brandsweets.com/colors/brands/microsoft-com). — https://brandsweets.com/colors/charcoal
- **Sea Green** #2e8b57 [harmony, pool: complementary] — Sea Green sits directly opposite #370b35 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Asana (https://brandsweets.com/colors/brands/asana-com), Wellness (https://brandsweets.com/palettes/warm#wellness), Subaru (https://brandsweets.com/colors/brands/subaru-com), Next.js (https://brandsweets.com/colors/brands/nextjs-org). — https://brandsweets.com/colors/seagreen
- **Teal** #008080 [harmony, pool: split] — Teal is a split-complement of #370b35: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Sapphire & Gold (https://brandsweets.com/palettes/luxury#sapphire-and-gold), Clinic (https://brandsweets.com/palettes/clean#clinic), Alpine (https://brandsweets.com/palettes/cool#alpine), N26 (https://brandsweets.com/colors/brands/n26-com). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #370b35 in 18 real palettes, including Southwest Airlines's brand system and Wikipedia's brand system, as the accent. Seen in: Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 19 real palettes, including Sketch's brand system and Warp's brand system put Blue beside #370b35, as the accent. Seen in: Sketch (https://brandsweets.com/colors/brands/sketch-com), Warp (https://brandsweets.com/colors/brands/warp-dev), Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Monzo (https://brandsweets.com/colors/brands/monzo-com). — https://brandsweets.com/colors/blue
- **Blush Pink** #e8b4b8 [pool] — 4 real palettes, including Graphite Mono and Blush put Blush Pink beside #370b35, as the accent. Seen in: Graphite Mono (https://brandsweets.com/palettes/neutral#graphite-mono), Blush (https://brandsweets.com/palettes/light#blush), Estate (https://brandsweets.com/palettes/luxury#estate), Cartier (https://brandsweets.com/colors/brands/cartier-com). — https://brandsweets.com/colors/blush-pink
- **Brown** #a52a2a [pool] — 5 real palettes, including Woodsmoke and Typewriter put Brown beside #370b35, as the accent. Seen in: Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Typewriter (https://brandsweets.com/palettes/editorial#typewriter), Garnet (https://brandsweets.com/palettes/warm#garnet), State Farm (https://brandsweets.com/colors/brands/statefarm-com). — https://brandsweets.com/colors/brown

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

- On white (#ffffff): 16.64:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.26:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #c828c0 (4.52:1); AA: background → #858585 (4.51:1); AAA: text → #e166db (7.12:1); AAA: background → #ababab (7.25:1)

## 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/370b35-c19fbb-8fcb62-2d1f26-eee9f1?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: "#370b35" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.