Color

#af180d

#af180d
hex#af180d
rgbrgb(175, 24, 13)
hslhsl(4, 86%, 37%)
oklchoklch(0.483 0.185 29.7)
Closest name: All Systems Red (#b30103)Relative luminance 0.098

Colors that go with #af180d

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 →

#0da5af

#af0d54 · #af690d

#0daf18 · #180daf

Split-complementary

Open in tool →

#0daf69 · #0d54af

#54af0d · #0da5af · #690daf

Contrast

#af180d as textRatioAAAA largeAAAFix
Aaon white
7.1:1passpasspassPasses AAA — no fix needed.
Aaon black
2.96:1failfailfail
  • AA: use #e41f11 as the text (4.5:1)
  • AAA: use #f36c62 as the text (7.13:1)
  • AA: or shift the background to #cfcfcf (4.55:1)
  • AAA: or shift the background to #ffffff (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #af180d as the background.

Brands using this color

Fonts for this mood

#af180d reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #af180d
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 #af180d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/af180d-c4a39c-62cb9f-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