Color

#fd1735

#fd1735
hex#fd1735
rgbrgb(253, 23, 53)
hslhsl(352, 98%, 54%)
oklchoklch(0.632 0.248 24)
Closest name: red (#ff0000)Relative luminance 0.2175

Colors that go with #fd1735

Charcoal, Dodger Blue and Steel Blue 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 →

#17fdde

#fd17a8 · #fd6b17

#35fd17 · #1735fd

Split-complementary

Open in tool →

#17fd6b · #17a8fd

#a8fd17 · #17fdde · #6b17fd

Contrast

#fd1735 as textRatioAAAA largeAAAFix
Aaon white
3.92:1failpassfail
  • AA: use #ed0222 as the text (4.53:1)
  • AAA: use #b10219 as the text (7.26:1)
  • AA: or shift the background to #171717 (4.57:1)
Aaon black
5.35:1passpassfail
  • AAA: use #fd6277 as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fd1735 as the background.

Brands using this color

Fonts for this mood

#fd1735 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fd1735
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 #fd1735 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fd1735-c49c9d-62cb8a-2d231f-f1e9ee?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