Color

#fb3932

#fb3932
hex#fb3932
rgbrgb(251, 57, 50)
hslhsl(2, 96%, 59%)
oklchoklch(0.646 0.23 28)
Closest name: Blood Burst (#ff474c)Relative luminance 0.2367

Tints & shades

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

Harmonies

Complementary

Open in tool →

#32f4fb

#fb3290 · #fb9d32

#32fb39 · #3932fb

Split-complementary

Open in tool →

#32fb9d · #3290fb

#90fb32 · #32f4fb · #9d32fb

Contrast

#fb3932 as textRatioAAAA largeAAAFix
Aaon white
3.66:1failpassfail
  • AA: use #eb0c05 as the text (4.58:1)
  • AAA: use #b40a04 as the text (7.03:1)
  • AA: or shift the background to #1c1c1c (4.65:1)
Aaon black
5.73:1passpassfail
  • AAA: use #fc645f as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fb3932 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#fb3932 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fb3932
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 #fb3932 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fb3932-c4a29c-62cb9c-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