Color

#421a24

#421a24
hex#421a24
rgbrgb(66, 26, 36)
hslhsl(345, 43%, 18%)
oklchoklch(0.281 0.063 6.3)
Closest name: Black-Hearted (#3e1825)Relative luminance 0.0202

Colors that go with #421a24

Charcoal, Dark Olive Green and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#1a4238

#421a38 · #42241a

#24421a · #1a2442

Split-complementary

Open in tool →

#1a4224 · #1a3842

#38421a · #1a4238 · #241a42

Contrast

#421a24 as textRatioAAAA largeAAAFix
Aaon white
14.95:1passpasspassPasses AAA — no fix needed.
Aaon black
1.4:1failfailfail
  • AA: use #bb546d as the text (4.6:1)
  • AAA: use #cc7f93 as the text (7.02:1)
  • AA: or shift the background to #8f8f8f (4.62:1)
  • AAA: or shift the background to #b3b3b3 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #421a24 as the background.

Brands using this color

Fonts for this mood

#421a24 reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #421a24
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #421a24 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/421a24-c49ca1-62cb7e-2d221f-f1e9ef?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md