Color

#f33f2b

#f33f2b
hex#f33f2b
rgbrgb(243, 63, 43)
hslhsl(6, 89%, 56%)
oklchoklch(0.636 0.219 30.3)
Closest name: Arcade Fire (#ee3311)Relative luminance 0.2278

Colors that go with #f33f2b

Charcoal, Steel Blue and Cadet 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 →

#2bdff3

#f32b7b · #f3a32b

#2bf33f · #3f2bf3

Split-complementary

Open in tool →

#2bf3a3 · #2b7bf3

#7bf32b · #2bdff3 · #a32bf3

Contrast

#f33f2b as textRatioAAAA largeAAAFix
Aaon white
3.78:1failpassfail
  • AA: use #e7230d as the text (4.52:1)
  • AAA: use #ae1a0a as the text (7.11:1)
  • AA: or shift the background to #1c1c1c (4.51:1)
Aaon black
5.56:1passpassfail
  • AAA: use #f56b5b as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #f33f2b as the background.

Brands using this color

Fonts for this mood

#f33f2b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f33f2b
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 #f33f2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f33f2b-c4a59c-62cba3-2d271f-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