Color

#f00a12

#f00a12
hex#f00a12
rgbrgb(240, 10, 18)
hslhsl(358, 92%, 49%)
oklchoklch(0.602 0.244 28.3)
Closest name: Alarm (#ec0003)Relative luminance 0.1879

Colors that go with #f00a12

Charcoal, Royal Blue and Steel Blue 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 →

#0af0e8

#f00a85 · #f0750a

#12f00a · #0a12f0

Split-complementary

Open in tool →

#0af075 · #0a85f0

#85f00a · #0af0e8 · #750af0

Contrast

#f00a12 as textRatioAAAA largeAAAFix
Aaon white
4.41:1failpassfail
  • AA: use #eb0a11 as the text (4.58:1)
  • AAA: use #b0070d as the text (7.29:1)
  • AA: or shift the background to #080808 (4.54:1)
Aaon black
4.76:1passpassfail
  • AAA: use #f9676c as the text (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #f00a12 as the background.

Brands using this color

Fonts for this mood

#f00a12 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f00a12
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 #f00a12 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f00a12-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