Color

#ff4255

#ff4255
hex#ff4255
rgbrgb(255, 66, 85)
hslhsl(354, 100%, 63%)
oklchoklch(0.664 0.223 20.7)
Closest name: Blood Burst (#ff474c)Relative luminance 0.2581

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#42ffec

#ff42b4 · #ff8e42

#55ff42 · #4255ff

Split-complementary

Open in tool →

#42ff8e · #42b4ff

#b4ff42 · #42ffec · #8e42ff

Contrast

#ff4255 as textRatioAAAA largeAAAFix
Aaon white
3.41:1failpassfail
  • AA: use #eb0017 as the text (4.62:1)
  • AAA: use #b30012 as the text (7.18:1)
  • AA: or shift the background to #242424 (4.56:1)
Aaon black
6.16:1passpassfail
  • AAA: use #ff6171 as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ff4255 as the background.

Brands using this color

Fonts for this mood

#ff4255 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff4255
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #ff4255 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff4255-c49d9c-62cb8e-2d241f-f1e9ee?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