Color

#ff5147

#ff5147
hex#ff5147
rgbrgb(255, 81, 71)
hslhsl(3, 100%, 64%)
oklchoklch(0.676 0.212 27.6)
Closest name: Blood Burst (#ff474c)Relative luminance 0.276

Tints & shades

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

Harmonies

Complementary

Open in tool →

#47f6ff

#ff479a · #ffac47

#47ff51 · #5147ff

Split-complementary

Open in tool →

#47ffac · #479aff

#9aff47 · #47f6ff · #ac47ff

Contrast

#ff5147 as textRatioAAAA largeAAAFix
Aaon white
3.22:1failpassfail
  • AA: use #eb0c00 as the text (4.58:1)
  • AAA: use #b30900 as the text (7.1:1)
  • AA: or shift the background to #292929 (4.52:1)
Aaon black
6.52:1passpassfail
  • AAA: use #ff5f57 as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #ff5147 as the background.

Brands using this color

Fonts for this mood

#ff5147 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff5147
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 #ff5147 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff5147-c4a39c-62cb9d-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