Color

#fbdf56

#fbdf56
hex#fbdf56
rgbrgb(251, 223, 86)
hslhsl(50, 95%, 66%)
oklchoklch(0.903 0.155 97.6)
Closest name: Mustard Yellow (#ffdb58)Relative luminance 0.7396

Colors that go with #fbdf56

Charcoal, Deep Sky Blue and Lilac 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 →

#5671fb

#fb8d56 · #c4fb56

#56fbdf · #df56fb

Split-complementary

Open in tool →

#56c4fb · #8d56fb

#56fb8d · #5671fb · #fb56c4

Contrast

#fbdf56 as textRatioAAAA largeAAAFix
Aaon white
1.33:1failfailfail
  • AA: use #8b7504 as the text (4.52:1)
  • AAA: use #685703 as the text (7.11:1)
  • AA: or shift the background to #636363 (4.52:1)
  • AAA: or shift the background to #454545 (7.21:1)
Aaon black
15.79:1passpasspassPasses 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 #fbdf56 as the background.

Brands using this color

Fonts for this mood

#fbdf56 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fbdf56
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 #fbdf56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fbdf56-c4c29c-4eacdf-292d1f-f1ece9?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