Color

#421011

#421011
hex#421011
rgbrgb(66, 16, 17)
hslhsl(359, 61%, 16%)
oklchoklch(0.26 0.077 23.2)
Closest name: English Breakfast (#441111)Relative luminance 0.0157

Colors that go with #421011

Charcoal, Royal Blue and Sienna 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 →

#104241

#42102a · #422810

#114210 · #101142

Split-complementary

Open in tool →

#104228 · #102a42

#2a4210 · #104241 · #281042

Contrast

#421011 as textRatioAAAA largeAAAFix
Aaon white
15.98:1passpasspassPasses AAA — no fix needed.
Aaon black
1.31:1failfailfail
  • AA: use #d14245 as the text (4.58:1)
  • AAA: use #de7879 as the text (7.07:1)
  • AA: or shift the background to #8a8a8a (4.63:1)
  • AAA: or shift the background to #adadad (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #421011 as the background.

Brands using this color

Fonts for this mood

#421011 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #421011
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 #421011 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/421011-c4a09c-62cb96-2d251f-f1e9ed?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