Color

#ac2c2a

#ac2c2a
hex#ac2c2a
rgbrgb(172, 44, 42)
hslhsl(1, 61%, 42%)
oklchoklch(0.495 0.165 26.3)
Closest name: firebrick (#b22222)Relative luminance 0.1074

Colors that go with #ac2c2a

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 →

#2aaaac

#ac2a69 · #ac6d2a

#2aac2c · #2c2aac

Split-complementary

Open in tool →

#2aac6d · #2a69ac

#69ac2a · #2aaaac · #6d2aac

Contrast

#ac2c2a as textRatioAAAA largeAAAFix
Aaon white
6.67:1passpassfail
  • AAA: use #a42a28 as the text (7.14:1)
Aaon black
3.15:1failpassfail
  • AA: use #d14542 as the text (4.64:1)
  • AAA: use #de7978 as the text (7.11:1)
  • AA: or shift the background to #d4d4d4 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ac2c2a as the background.

Brands using this color

Fonts for this mood

#ac2c2a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ac2c2a
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 #ac2c2a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ac2c2a-c4a19c-62cb9a-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