Color

#f5d100

#f5d100
hex#f5d100
rgbrgb(245, 209, 0)
hslhsl(51, 100%, 48%)
oklchoklch(0.865 0.178 96.4)
Closest name: gold (#ffd700)Relative luminance 0.6501

Colors that go with #f5d100

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 #f5d100

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0025f5

#f55600 · #9ff500

#00f5d0 · #d000f5

Split-complementary

Open in tool →

#009ff5 · #5600f5

#00f556 · #0025f5 · #f5009f

Contrast

#f5d100 as textRatioAAAA largeAAAFix
Aaon white
1.5:1failfailfail
  • AA: use #8a7500 as the text (4.54:1)
  • AAA: use #665700 as the text (7.17:1)
  • AA: or shift the background to #595959 (4.67:1)
  • AAA: or shift the background to #3d3d3d (7.24:1)
Aaon black
14:1passpasspassPasses 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 #f5d100 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#f5d100 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f5d100
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 #f5d100 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f5d100-c4c29c-4eaadf-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