Color

#af0604

#af0604
hex#af0604
rgbrgb(175, 6, 4)
hslhsl(1, 96%, 35%)
oklchoklch(0.475 0.192 29.1)
Closest name: All Systems Red (#b30103)Relative luminance 0.0925

Colors that go with #af0604

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 →

#04acaf

#af0456 · #af5c04

#04af06 · #0604af

Split-complementary

Open in tool →

#04af5c · #0456af

#56af04 · #04acaf · #5c04af

Contrast

#af0604 as textRatioAAAA largeAAAFix
Aaon white
7.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.85:1failfailfail
  • AA: use #eb0905 as the text (4.57:1)
  • AAA: use #fc625f as the text (7.05:1)
  • AA: or shift the background to #cccccc (4.59:1)
  • AAA: or shift the background to #fafafa (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #af0604 as the background.

Brands using this color

Fonts for this mood

#af0604 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #af0604
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 #af0604 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/af0604-c4a19c-62cb9a-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