Color

#fd3030

#fd3030
hex#fd3030
rgbrgb(253, 48, 48)
hslhsl(0, 98%, 59%)
oklchoklch(0.643 0.237 27.1)
Closest name: red (#ff0000)Relative luminance 0.2321

Tints & shades

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

Harmonies

Complementary

Open in tool →

#30fdfd

#fd3096 · #fd9630

#30fd30 · #3030fd

Split-complementary

Open in tool →

#30fd96 · #3096fd

#96fd30 · #30fdfd · #9630fd

Contrast

#fd3030 as textRatioAAAA largeAAAFix
Aaon white
3.72:1failpassfail
  • AA: use #ed0202 as the text (4.55:1)
  • AAA: use #b60202 as the text (7:1)
  • AA: or shift the background to #1c1c1c (4.58:1)
Aaon black
5.64:1passpassfail
  • AAA: use #fd6262 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 #fd3030 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#fd3030 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fd3030
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 #fd3030 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fd3030-c4a19c-62cb98-2d251f-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