Color

#fc5a03

#fc5a03
hex#fc5a03
rgbrgb(252, 90, 3)
hslhsl(21, 98%, 50%)
oklchoklch(0.677 0.211 40.2)
Closest name: Basketball (#ee6730)Relative luminance 0.2801

Colors that go with #fc5a03

Cadet Blue, Charcoal 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 →

#03a5fc

#fc0328 · #fcd703

#03fc5a · #5a03fc

Split-complementary

Open in tool →

#03fcd7 · #0328fc

#28fc03 · #03a5fc · #d703fc

Contrast

#fc5a03 as textRatioAAAA largeAAAFix
Aaon white
3.18:1failpassfail
  • AA: use #cf4a02 as the text (4.53:1)
  • AAA: use #973602 as the text (7.38:1)
  • AA: or shift the background to #292929 (4.57:1)
Aaon black
6.6:1passpassfail
  • AAA: use #fd6412 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fc5a03 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#fc5a03 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fc5a03
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 #fc5a03 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fc5a03-c4af9c-62cbbd-2d2a1f-f1e9ea?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