Color

#fb132a

#fb132a
hex#fb132a
rgbrgb(251, 19, 42)
hslhsl(354, 97%, 53%)
oklchoklch(0.626 0.249 25.8)
Closest name: red (#ff0000)Relative luminance 0.2114

Colors that go with #fb132a

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 →

#13fbe4

#fb139e · #fb7013

#2afb13 · #132afb

Split-complementary

Open in tool →

#13fb70 · #139efb

#9efb13 · #13fbe4 · #7013fb

Contrast

#fb132a as textRatioAAAA largeAAAFix
Aaon white
4.02:1failpassfail
  • AA: use #ec041b as the text (4.57:1)
  • AAA: use #b50315 as the text (7.03:1)
  • AA: or shift the background to #141414 (4.59:1)
Aaon black
5.23:1passpassfail

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fb132a as the background.

Brands using this color

Fonts for this mood

#fb132a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fb132a
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 #fb132a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fb132a-c49d9c-62cb8e-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