Color

#fd3d3a

#fd3d3a
hex#fd3d3a
rgbrgb(253, 61, 58)
hslhsl(1, 98%, 61%)
oklchoklch(0.653 0.228 26.9)
Closest name: Blood Burst (#ff474c)Relative luminance 0.2453

Colors that go with #fd3d3a

Charcoal, Cadet Blue and Amber lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3afafd

#fd3a98 · #fd9f3a

#3afd3d · #3d3afd

Split-complementary

Open in tool →

#3afd9f · #3a98fd

#98fd3a · #3afafd · #9f3afd

Contrast

#fd3d3a as textRatioAAAA largeAAAFix
Aaon white
3.56:1failpassfail
  • AA: use #ed0602 as the text (4.54:1)
  • AAA: use #b10502 as the text (7.26:1)
  • AA: or shift the background to #212121 (4.53:1)
Aaon black
5.91:1passpassfail
  • AAA: use #fd605d as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fd3d3a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#fd3d3a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fd3d3a
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #fd3d3a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fd3d3a-c4a19c-62cb9a-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