Color

#ac2e2a

#ac2e2a
hex#ac2e2a
rgbrgb(172, 46, 42)
hslhsl(2, 61%, 42%)
oklchoklch(0.497 0.163 26.9)
Closest name: firebrick (#b22222)Relative luminance 0.1089

Colors that go with #ac2e2a

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 →

#2aa8ac

#ac2a67 · #ac6f2a

#2aac2e · #2e2aac

Split-complementary

Open in tool →

#2aac6f · #2a67ac

#67ac2a · #2aa8ac · #6f2aac

Contrast

#ac2e2a as textRatioAAAA largeAAAFix
Aaon white
6.61:1passpassfail
  • AAA: use #a42c28 as the text (7.07:1)
Aaon black
3.18:1failpassfail
  • AA: use #d0433e as the text (4.55:1)
  • AAA: use #de7b78 as the text (7.21:1)
  • AA: or shift the background to #d6d6d6 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ac2e2a as the background.

Brands using this color

Fonts for this mood

#ac2e2a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ac2e2a
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 #ac2e2a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ac2e2a-c4a29c-62cb9c-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