# #3d1a31

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

## Values

- Hex: `#3d1a31`
- RGB: rgb(61, 26, 49)
- HSL: hsl(321, 40%, 17%)
- OKLCH: oklch(0.278 0.064 342.1)
- Relative luminance: 0.0195
- Nearest named color: Blackberry (#43182f, Δ 1.379) — https://brandsweets.com/colors/blackberry
- Moods: warm, dark, luxury, bold
- Page: https://brandsweets.com/colors/3d1a31

## Tints & shades

- Tints (toward white): #592647, #76325e, #923f75, #af4b8c, #bf69a1, #cb86b3, #d7a2c5, #e3bfd7, #f0dbe9, #fcf8fb
- Shades (toward black): #39182e, #321528, #2e1425, #2b1222, #27111f, #200e1a, #1d0c17, #190b14, #12080e, #0e060b

## Harmonies

- Complementary: #1a3d26
- Analogous: #371a3d, #3d1a1f
- Triadic: #313d1a, #1a313d
- Split-complementary: #1f3d1a, #1a3d37
- Tetradic: #3d371a, #1a3d26, #1a1f3d

## Colors that go with #3d1a31

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 #3d1a31: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Tide Pool (https://brandsweets.com/palettes/cool#tide-pool), Squarespace (https://brandsweets.com/colors/brands/squarespace-com), Boeing (https://brandsweets.com/colors/brands/boeing-com), Volkswagen (https://brandsweets.com/colors/brands/vw-com). — https://brandsweets.com/colors/charcoal
- **Dark Olive Green** #556b2f [harmony, pool: triadic] — Dark Olive Green completes a triad with #3d1a31 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Cider (https://brandsweets.com/palettes/warm#cider), Clay & Linen (https://brandsweets.com/palettes/warm#clay-and-linen), 7-Eleven (https://brandsweets.com/colors/brands/7-eleven-com). — https://brandsweets.com/colors/darkolivegreen
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #3d1a31: 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), Mushroom (https://brandsweets.com/palettes/neutral#mushroom), Subaru (https://brandsweets.com/colors/brands/subaru-com), Asana (https://brandsweets.com/colors/brands/asana-com). — https://brandsweets.com/colors/seagreen
- **Sienna** #a0522d [harmony, pool: analogous] — Sienna is #3d1a31'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), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/sienna
- **Slate Blue** #6a5acd [harmony, pool: analogous] — Slate Blue is #3d1a31's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Superhuman (https://brandsweets.com/colors/brands/superhuman-com), GitLab (https://brandsweets.com/colors/brands/gitlab), Indigo SaaS (https://brandsweets.com/palettes/modern#indigo-saas), Sentry (https://brandsweets.com/colors/brands/sentry-io). — https://brandsweets.com/colors/slateblue
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #3d1a31 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Mid-Century (https://brandsweets.com/palettes/warm#mid-century), Alpine (https://brandsweets.com/palettes/cool#alpine), Saffron (https://brandsweets.com/palettes/warm#saffron), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #3d1a31 in 18 real palettes, including McDonald's's brand system and Wikipedia's brand system, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 19 real palettes, including Tim Hortons's brand system and Sketch's brand system put Blue beside #3d1a31, as the accent. Seen in: Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Sketch (https://brandsweets.com/colors/brands/sketch-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Headspace (https://brandsweets.com/colors/brands/headspace-com). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 15.1:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.39:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #b65493 (4.68:1); AA: background → #8f8f8f (4.67:1); AAA: text → #c87eae (7.05:1); AAA: background → #b3b3b3 (7.2:1)

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- 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/3d1a31-c19fb1-70cb62-2d1f22-f0e9f1?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: "#3d1a31" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.