Color

#af2a18

#af2a18
hex#af2a18
rgbrgb(175, 42, 24)
hslhsl(7, 76%, 39%)
oklchoklch(0.497 0.172 31.1)
Closest name: firebrick (#b22222)Relative luminance 0.1084

Colors that go with #af2a18

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 #af2a18

Tints & shades

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

Harmonies

Complementary

Open in tool →

#189daf

#af1852 · #af7518

#18af2a · #2a18af

Split-complementary

Open in tool →

#18af75 · #1852af

#52af18 · #189daf · #7518af

Contrast

#af2a18 as textRatioAAAA largeAAAFix
Aaon white
6.63:1passpassfail
  • AAA: use #a62717 as the text (7.18:1)
Aaon black
3.17:1failpassfail
  • AA: use #dc341e as the text (4.55:1)
  • AAA: use #ea7262 as the text (7.08:1)
  • AA: or shift the background to #d6d6d6 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #af2a18 as the background.

Brands using this color

Fonts for this mood

#af2a18 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #af2a18
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 #af2a18 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/af2a18-c4a59c-62cba4-2d271f-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