Color

#ac2d16

#ac2d16
hex#ac2d16
rgbrgb(172, 45, 22)
hslhsl(9, 77%, 38%)
oklchoklch(0.494 0.167 32.5)
Closest name: firebrick (#b22222)Relative luminance 0.1071

Colors that go with #ac2d16

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.

Real palettes that use #ac2d16

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#1695ac

#ac164b · #ac7716

#16ac2d · #2d16ac

Split-complementary

Open in tool →

#16ac77 · #164bac

#4bac16 · #1695ac · #7716ac

Contrast

#ac2d16 as textRatioAAAA largeAAAFix
Aaon white
6.69:1passpassfail
  • AAA: use #a22a15 as the text (7.3:1)
Aaon black
3.14:1failpassfail
  • AA: use #d9381c as the text (4.53:1)
  • AAA: use #ea725d as the text (7.06:1)
  • AA: or shift the background to #d4d4d4 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ac2d16 as the background.

Brands using this color

Fonts for this mood

#ac2d16 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ac2d16
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 #ac2d16 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ac2d16-c4a79c-62cba8-2d271f-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