# #421a24

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

## Values

- Hex: `#421a24`
- RGB: rgb(66, 26, 36)
- HSL: hsl(345, 43%, 18%)
- OKLCH: oklch(0.281 0.063 6.3)
- Relative luminance: 0.0202
- Nearest named color: Black-Hearted (#3e1825, Δ 1.191) — https://brandsweets.com/colors/black-hearted
- Moods: warm, dark, luxury, bold
- Page: https://brandsweets.com/colors/421a24

## Tints & shades

- Tints (toward white): #5f2634, #7c3144, #993d54, #b64964, #c2667d, #ce8396, #d9a0ae, #e5bdc7, #f0dbe0, #fcf8f9
- Shades (toward black): #3e1922, #37161e, #33141c, #2c1118, #281016, #240f14, #1d0c10, #1a0a0e, #12070a, #0f0608

## Harmonies

- Complementary: #1a4238
- Analogous: #421a38, #42241a
- Triadic: #24421a, #1a2442
- Split-complementary: #1a4224, #1a3842
- Tetradic: #38421a, #1a4238, #241a42

## Colors that go with #421a24

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 #421a24: 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 #421a24 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Cider (https://brandsweets.com/palettes/warm#cider), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), 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 #421a24: 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 #421a24'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
- **Steel Blue** #4682b4 [harmony, pool: triadic] — Steel Blue completes a triad with #421a24 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Hershey's (https://brandsweets.com/colors/brands/hersheys-com), Astro (https://brandsweets.com/colors/brands/astro-build), 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 #421a24 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), Gusto (https://brandsweets.com/colors/brands/gusto-com). — https://brandsweets.com/colors/teal
- **Amber** #ffbf00 [pool] — Amber is paired with #421a24 in 12 real palettes, including McDonald's's brand system and Maple, as the lead colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Maple (https://brandsweets.com/palettes/warm#maple), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), 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 Sketch's brand system put Blue beside #421a24, as the accent. Seen in: Tim Hortons (https://brandsweets.com/colors/brands/timhortons-com), Sketch (https://brandsweets.com/colors/brands/sketch-com), Headspace (https://brandsweets.com/colors/brands/headspace-com), Readymag (https://brandsweets.com/colors/brands/readymag-com). — https://brandsweets.com/colors/blue

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

- On white (#ffffff): 14.95:1 — AA pass, AA-large pass, AAA pass
- On black (#000000): 1.4:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #bb546d (4.6:1); AA: background → #8f8f8f (4.62:1); AAA: text → #cc7f93 (7.02:1); AAA: background → #b3b3b3 (7.13:1)

## Brands using this color

- **Superhuman** — primary #441c24 (Δ 0.767) — https://brandsweets.com/colors/brands/superhuman-com
- **Superhuman** — secondary #421d24 (Δ 0.823) — https://brandsweets.com/colors/brands/superhuman-com
- **Tim Hortons** — primary #3f2021 (Δ 1.97) — 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/421a24-c49ca1-62cb7e-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: "#421a24" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.