Color

#fd3538

#fd3538
hex#fd3538
rgbrgb(253, 53, 56)
hslhsl(359, 98%, 60%)
oklchoklch(0.647 0.233 26.2)
Closest name: Blood Burst (#ff474c)Relative luminance 0.2371

Colors that go with #fd3538

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 →

#35fdfa

#fd359c · #fd9635

#38fd35 · #3538fd

Split-complementary

Open in tool →

#35fd96 · #359cfd

#9cfd35 · #35fdfa · #9635fd

Contrast

#fd3538 as textRatioAAAA largeAAAFix
Aaon white
3.66:1failpassfail
  • AA: use #ed0206 as the text (4.55:1)
  • AAA: use #b60205 as the text (7:1)
  • AA: or shift the background to #1f1f1f (4.51:1)
Aaon black
5.74:1passpassfail
  • AAA: use #fd6265 as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fd3538 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#fd3538 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fd3538
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 #fd3538 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fd3538-c4a09c-62cb96-2d251f-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