Color

#f04542

#f04542
hex#f04542
rgbrgb(240, 69, 66)
hslhsl(1, 85%, 60%)
oklchoklch(0.639 0.208 26.1)
Closest name: Angry Flamingo (#f04e45)Relative luminance 0.2317

Colors that go with #f04542

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 →

#42edf0

#f04296 · #f09c42

#42f045 · #4542f0

Split-complementary

Open in tool →

#42f09c · #4296f0

#96f042 · #42edf0 · #9c42f0

Contrast

#f04542 as textRatioAAAA largeAAAFix
Aaon white
3.73:1failpassfail
  • AA: use #e71613 as the text (4.64:1)
  • AAA: use #af110e as the text (7.22:1)
  • AA: or shift the background to #1c1c1c (4.57:1)
Aaon black
5.63:1passpassfail
  • AAA: use #f36a68 as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #f04542 as the background.

Brands using this color

Fonts for this mood

#f04542 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f04542
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 #f04542 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f04542-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