Color

#ac2f33

#ac2f33
hex#ac2f33
rgbrgb(172, 47, 51)
hslhsl(358, 57%, 43%)
oklchoklch(0.499 0.161 23.6)
Closest name: brown (#a52a2a)Relative luminance 0.1104

Colors that go with #ac2f33

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 #ac2f33

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2faca8

#ac2f72 · #ac692f

#33ac2f · #2f33ac

Split-complementary

Open in tool →

#2fac69 · #2f72ac

#72ac2f · #2faca8 · #692fac

Contrast

#ac2f33 as textRatioAAAA largeAAAFix
Aaon white
6.55:1passpassfail
Aaon black
3.21:1failpassfail
  • AA: use #cd474b as the text (4.6:1)
  • AAA: use #db7b7e as the text (7.15:1)
  • AA: or shift the background to #d6d6d6 (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 #ac2f33 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#ac2f33 reads as warm. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ac2f33
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 #ac2f33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ac2f33-c49f9c-62cb95-2d251f-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