Color

#fd1808

#fd1808
hex#fd1808
rgbrgb(253, 24, 8)
hslhsl(4, 98%, 51%)
oklchoklch(0.63 0.251 29.7)
Closest name: red (#ff0000)Relative luminance 0.2155

Tints & shades

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

Harmonies

Complementary

Open in tool →

#08ecfd

#fd0872 · #fd9208

#08fd18 · #1808fd

Split-complementary

Open in tool →

#08fd92 · #0872fd

#72fd08 · #08ecfd · #9208fd

Contrast

#fd1808 as textRatioAAAA largeAAAFix
Aaon white
3.95:1failpassfail
  • AA: use #e81202 as the text (4.65:1)
  • AAA: use #b10d02 as the text (7.17:1)
  • AA: or shift the background to #171717 (4.53:1)
Aaon black
5.31:1passpassfail
  • AAA: use #fd6358 as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fd1808 as the background.

Brands using this color

Fonts for this mood

#fd1808 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fd1808
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 #fd1808 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fd1808-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