Color

#fb374e

#fb374e
hex#fb374e
rgbrgb(251, 55, 78)
hslhsl(353, 96%, 60%)
oklchoklch(0.648 0.228 20.8)
Closest name: Blood Burst (#ff474c)Relative luminance 0.2379

Tints & shades

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

Harmonies

Complementary

Open in tool →

#37fbe4

#fb37b0 · #fb8237

#4efb37 · #374efb

Split-complementary

Open in tool →

#37fb82 · #37b0fb

#b0fb37 · #37fbe4 · #8237fb

Contrast

#fb374e as textRatioAAAA largeAAAFix
Aaon white
3.65:1failpassfail
  • AA: use #eb0520 as the text (4.59:1)
  • AAA: use #b40418 as the text (7.07:1)
  • AA: or shift the background to #1f1f1f (4.52:1)
Aaon black
5.76:1passpassfail
  • AAA: use #fc5f71 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fb374e as the background.

Brands using this color

Fonts for this mood

#fb374e reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fb374e
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 #fb374e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fb374e-c49c9c-62cb8c-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