# #431e28

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

## Values

- Hex: `#431e28`
- RGB: rgb(67, 30, 40)
- HSL: hsl(344, 38%, 19%)
- OKLCH: oklch(0.291 0.058 4.2)
- Relative luminance: 0.0228
- Nearest named color: Castro (#44232f, Δ 1.603) — https://brandsweets.com/colors/castro
- Moods: warm, dark, luxury, bold
- Page: https://brandsweets.com/colors/431e28

## Tints & shades

- Tints (toward white): #5f2b39, #7b3749, #97445a, #b2536c, #be6f84, #c98799, #d6a4b1, #e3c0c9, #efdce1, #fcf8f9
- Shades (toward black): #3f1c26, #381922, #35181f, #2e151b, #2a1319, #231015, #200e13, #190b0f, #15090d, #0e0608

## Harmonies

- Complementary: #1e4339
- Analogous: #431e3a, #43271e
- Triadic: #28431e, #1e2843
- Split-complementary: #1e4327, #1e3a43
- Tetradic: #3a431e, #1e4339, #271e43

## Colors that go with #431e28

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 #431e28: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Squarespace (https://brandsweets.com/colors/brands/squarespace-com), Boeing (https://brandsweets.com/colors/brands/boeing-com), Lamborghini (https://brandsweets.com/colors/brands/lamborghini-com), HubSpot (https://brandsweets.com/colors/brands/hubspot-com). — https://brandsweets.com/colors/charcoal
- **Dark Olive Green** #556b2f [harmony, pool: triadic] — Dark Olive Green completes a triad with #431e28 — 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), Olive Grove (https://brandsweets.com/palettes/muted#olive-grove). — https://brandsweets.com/colors/darkolivegreen
- **Sea Green** #2e8b57 [harmony, pool: split] — Sea Green is a split-complement of #431e28: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Mushroom (https://brandsweets.com/palettes/neutral#mushroom), Wellness (https://brandsweets.com/palettes/warm#wellness), 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 #431e28's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces. Seen in: Olive Grove (https://brandsweets.com/palettes/muted#olive-grove), Harvest (https://brandsweets.com/palettes/warm#harvest), Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/sienna
- **Steel Blue** #4682b4 [harmony, pool: triadic] — Steel Blue completes a triad with #431e28 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Discover (https://brandsweets.com/colors/brands/discover-com). — https://brandsweets.com/colors/steelblue
- **Teal** #008080 [harmony, pool: complementary] — Teal sits directly opposite #431e28 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), Saffron (https://brandsweets.com/palettes/warm#saffron), Magazine Ochre (https://brandsweets.com/palettes/editorial#magazine-ochre), Alpine (https://brandsweets.com/palettes/cool#alpine). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #431e28 in 10 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), Maple (https://brandsweets.com/palettes/warm#maple), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 12 real palettes, including Tim Hortons's brand system and Headspace's brand system put Blue beside #431e28, as the accent. Seen in: Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), Sketch (https://brandsweets.com/colors/brands/sketch-com), Readymag (https://brandsweets.com/colors/brands/readymag-com). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 14.43:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.46:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #b55a72 (4.67:1); AA: background → #919191 (4.58:1); AAA: text → #c88496 (7.2:1); AAA: background → #b5b5b5 (7.04:1)

## Brands using this color

- **Superhuman** — secondary #421d24 (Δ 0.723) — https://brandsweets.com/colors/brands/superhuman-com
- **Superhuman** — primary #441c24 (Δ 0.739) — https://brandsweets.com/colors/brands/superhuman-com
- **Tim Hortons** — primary #3f2021 (Δ 1.736) — https://brandsweets.com/colors/brands/timhortons-com

## 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/431e28-c49ca2-62cb7c-2d221f-f1e9ef?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: "#431e28" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.