Color

#42130a

#42130a
hex#42130a
rgbrgb(66, 19, 10)
hslhsl(10, 74%, 15%)
oklchoklch(0.263 0.075 32.8)
Closest name: Black Chocolate (#441100)Relative luminance 0.0165

Colors that go with #42130a

Charcoal, Royal Blue 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 →

#0a3943

#430a1d · #43300a

#0a4313 · #130a43

Split-complementary

Open in tool →

#0a4330 · #0a1d43

#1d430a · #0a3943 · #300a43

Contrast

#42130a as textRatioAAAA largeAAAFix
Aaon white
15.8:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #d53e20 as the text (4.54:1)
  • AAA: use #e7765f as the text (7.15:1)
  • AA: or shift the background to #8a8a8a (4.58:1)
  • AAA: or shift the background to #adadad (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #42130a as the background.

Brands using this color

Fonts for this mood

#42130a reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42130a
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 #42130a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42130a-c4a79c-62cbaa-2d281f-f1e9ec?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