Color

#fb2d3b

#fb2d3b
hex#fb2d3b
rgbrgb(251, 45, 59)
hslhsl(356, 96%, 58%)
oklchoklch(0.639 0.236 24.4)
Closest name: red (#ff0000)Relative luminance 0.227

Colors that go with #fb2d3b

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 →

#2dfbed

#fb2da2 · #fb862d

#3bfb2d · #2d3bfb

Split-complementary

Open in tool →

#2dfb86 · #2da2fb

#a2fb2d · #2dfbed · #862dfb

Contrast

#fb2d3b as textRatioAAAA largeAAAFix
Aaon white
3.79:1failpassfail
  • AA: use #eb0514 as the text (4.6:1)
  • AAA: use #b4040f as the text (7.08:1)
  • AA: or shift the background to #1a1a1a (4.59:1)
Aaon black
5.54:1passpassfail
  • AAA: use #fc646e 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 #fb2d3b as the background.

Brands using this color

Fonts for this mood

#fb2d3b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fb2d3b
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 #fb2d3b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fb2d3b-c49e9c-62cb91-2d241f-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