Color

#fd2b2b

#fd2b2b
hex#fd2b2b
rgbrgb(253, 43, 43)
hslhsl(0, 98%, 58%)
oklchoklch(0.64 0.241 27.5)
Closest name: red (#ff0000)Relative luminance 0.2278

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2bfdfd

#fd2b94 · #fd942b

#2bfd2b · #2b2bfd

Split-complementary

Open in tool →

#2bfd94 · #2b94fd

#94fd2b · #2bfdfd · #942bfd

Contrast

#fd2b2b as textRatioAAAA largeAAAFix
Aaon white
3.78:1failpassfail
  • AA: use #ed0202 as the text (4.55:1)
  • AAA: use #b60202 as the text (7:1)
  • AA: or shift the background to #1c1c1c (4.51:1)
Aaon black
5.56:1passpassfail
  • 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 #fd2b2b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#fd2b2b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fd2b2b
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 #fd2b2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fd2b2b-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