Color

#421f30

#421f30
hex#421f30
rgbrgb(66, 31, 48)
hslhsl(331, 36%, 19%)
oklchoklch(0.294 0.059 350.9)
Closest name: Castro (#44232f)Relative luminance 0.0235

Colors that go with #421f30

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 →

#1f4231

#421f41 · #42201f

#30421f · #1f3042

Split-complementary

Open in tool →

#1f4220 · #1f4142

#41421f · #1f4231 · #201f42

Contrast

#421f30 as textRatioAAAA largeAAAFix
Aaon white
14.28:1passpasspassPasses AAA — no fix needed.
Aaon black
1.47:1failfailfail
  • AA: use #b15983 as the text (4.63:1)
  • AAA: use #c482a2 as the text (7.06:1)
  • AA: or shift the background to #919191 (4.53:1)
  • AAA: or shift the background to #b8b8b8 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #421f30 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#421f30 reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #421f30
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 #421f30 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/421f30-c49cab-62cb66-2d1f20-f1e9f1?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