Color

#fb4d41

#fb4d41
hex#fb4d41
rgbrgb(251, 77, 65)
hslhsl(4, 96%, 62%)
oklchoklch(0.665 0.212 28.2)
Closest name: Blood Burst (#ff474c)Relative luminance 0.262

Tints & shades

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

Harmonies

Complementary

Open in tool →

#41effb

#fb4192 · #fbab41

#41fb4d · #4d41fb

Split-complementary

Open in tool →

#41fbab · #4192fb

#92fb41 · #41effb · #ab41fb

Contrast

#fb4d41 as textRatioAAAA largeAAAFix
Aaon white
3.37:1failpassfail
  • AA: use #eb1405 as the text (4.53:1)
  • AAA: use #af0f04 as the text (7.26:1)
  • AA: or shift the background to #242424 (4.61:1)
Aaon black
6.24:1passpassfail
  • AAA: use #fc655a as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fb4d41 as the background.

Brands using this color

Fonts for this mood

#fb4d41 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fb4d41
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 #fb4d41 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fb4d41-c4a39c-62cb9f-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