Color

#fc0f03

#fc0f03
hex#fc0f03
rgbrgb(252, 15, 3)
hslhsl(3, 98%, 50%)
oklchoklch(0.625 0.253 29.6)
Closest name: red (#ff0000)Relative luminance 0.2104

Tints & shades

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

Harmonies

Complementary

Open in tool →

#03f0fc

#fc0373 · #fc8c03

#03fc0f · #0f03fc

Split-complementary

Open in tool →

#03fc8c · #0373fc

#73fc03 · #03f0fc · #8c03fc

Contrast

#fc0f03 as textRatioAAAA largeAAAFix
Aaon white
4.03:1failpassfail
  • AA: use #ed0e02 as the text (4.5:1)
  • AAA: use #b10b02 as the text (7.2:1)
  • AA: or shift the background to #141414 (4.57:1)
Aaon black
5.21:1passpassfail
  • AAA: use #fd6158 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 #fc0f03 as the background.

Brands using this color

Fonts for this mood

#fc0f03 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fc0f03
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 #fc0f03 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fc0f03-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