Color

#fb3628

#fb3628
hex#fb3628
rgbrgb(251, 54, 40)
hslhsl(4, 96%, 57%)
oklchoklch(0.643 0.233 29.3)
Closest name: Apple Cherry (#f81404)Relative luminance 0.233

Colors that go with #fb3628

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 →

#28edfb

#fb2883 · #fb9f28

#28fb36 · #3628fb

Split-complementary

Open in tool →

#28fb9f · #2883fb

#83fb28 · #28edfb · #9f28fb

Contrast

#fb3628 as textRatioAAAA largeAAAFix
Aaon white
3.71:1failpassfail
  • AA: use #eb1405 as the text (4.53:1)
  • AAA: use #af0f04 as the text (7.26:1)
  • AA: or shift the background to #1c1c1c (4.59:1)
Aaon black
5.66:1passpassfail
  • AAA: use #fc655a 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 #fb3628 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#fb3628 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fb3628
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 #fb3628 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fb3628-c4a39c-62cb9f-2d261f-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