Color

#fcd55f

#fcd55f
hex#fcd55f
rgbrgb(252, 213, 95)
hslhsl(45, 96%, 68%)
oklchoklch(0.884 0.142 90.9)
Closest name: Mustard Yellow (#ffdb58)Relative luminance 0.6911

Colors that go with #fcd55f

Charcoal, Cornflower Blue and Deep Sky 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.

Real palettes that use #fcd55f

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#5f86fc

#fc865f · #d5fc5f

#5ffcd5 · #d55ffc

Split-complementary

Open in tool →

#5fd5fc · #865ffc

#5ffc86 · #5f86fc · #fc5fd5

Contrast

#fcd55f as textRatioAAAA largeAAAFix
Aaon white
1.42:1failfailfail
  • AA: use #967103 as the text (4.51:1)
  • AAA: use #6e5302 as the text (7.24:1)
  • AA: or shift the background to #5e5e5e (4.58:1)
  • AAA: or shift the background to #424242 (7.09:1)
Aaon black
14.82:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fcd55f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#fcd55f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fcd55f
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 #fcd55f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fcd55f-c4be9c-62afcb-2b2d1f-f1ebe9?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