Color

#421b05

#421b05
hex#421b05
rgbrgb(66, 27, 5)
hslhsl(22, 86%, 14%)
oklchoklch(0.276 0.069 46.9)
Closest name: Délicieux au Chocolat (#412010)Relative luminance 0.0195

Colors that go with #421b05

Blue Violet, Charcoal and Crimson 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 →

#052c42

#42050d · #423a05

#05421c · #1c0542

Split-complementary

Open in tool →

#05423a · #050d42

#0d4205 · #052c42 · #3a0542

Contrast

#421b05 as textRatioAAAA largeAAAFix
Aaon white
15.1:1passpasspassPasses AAA — no fix needed.
Aaon black
1.39:1failfailfail
  • AA: use #c7530f as the text (4.67:1)
  • AAA: use #ef722a as the text (7.11:1)
  • AA: or shift the background to #8f8f8f (4.67:1)
  • AAA: or shift the background to #b3b3b3 (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 #421b05 as the background.

Brands using this color

Fonts for this mood

#421b05 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #421b05
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 #421b05 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/421b05-c4af9c-62cbbf-2d2a1f-f1e9ea?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