Color

#fd172a

#fd172a
hex#fd172a
rgbrgb(253, 23, 42)
hslhsl(355, 98%, 54%)
oklchoklch(0.631 0.249 26)
Closest name: red (#ff0000)Relative luminance 0.2166

Colors that go with #fd172a

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 →

#17fde9

#fd179d · #fd7717

#2afd17 · #172afd

Split-complementary

Open in tool →

#17fd77 · #179dfd

#9dfd17 · #17fde9 · #7717fd

Contrast

#fd172a as textRatioAAAA largeAAAFix
Aaon white
3.94:1failpassfail
  • AA: use #ed0216 as the text (4.54:1)
  • AAA: use #b10210 as the text (7.28:1)
  • AA: or shift the background to #171717 (4.55:1)
Aaon black
5.33:1passpassfail
  • AAA: use #fd626f as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fd172a as the background.

Brands using this color

Fonts for this mood

#fd172a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fd172a
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 #fd172a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fd172a-c49e9c-62cb8f-2d241f-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