Color

#a42b23

#a42b23
hex#a42b23
rgbrgb(164, 43, 35)
hslhsl(4, 65%, 39%)
oklchoklch(0.479 0.159 28.4)
Closest name: brown (#a52a2a)Relative luminance 0.0974

Colors that go with #a42b23

Royal Blue, Teal and Amber 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 →

#239ba4

#a4235b · #a46c23

#23a42b · #2b23a4

Split-complementary

Open in tool →

#23a46c · #235ba4

#5ba423 · #239ba4 · #6c23a4

Contrast

#a42b23 as textRatioAAAA largeAAAFix
Aaon white
7.12:1passpasspassPasses AAA — no fix needed.
Aaon black
2.95:1failfailfail
  • AA: use #d44035 as the text (4.58:1)
  • AAA: use #e17770 as the text (7.07:1)
  • AA: or shift the background to #cfcfcf (4.57:1)
  • AAA: or shift the background to #ffffff (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 #a42b23 as the background.

Brands using this color

Fonts for this mood

#a42b23 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a42b23
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 #a42b23 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a42b23-c4a39c-62cb9f-2d261f-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