Color

#ffcb1f

#ffcb1f
hex#ffcb1f
rgbrgb(255, 203, 31)
hslhsl(46, 100%, 56%)
oklchoklch(0.864 0.171 89.2)
Closest name: Anna Banana (#f5d547)Relative luminance 0.6407

Colors that go with #ffcb1f

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 #ffcb1f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1f53ff

#ff5a1f · #c3ff1f

#1fffcb · #cb1fff

Split-complementary

Open in tool →

#1fc3ff · #5a1fff

#1fff5a · #1f53ff · #ff1fc3

Contrast

#ffcb1f as textRatioAAAA largeAAAFix
Aaon white
1.52:1failfailfail
  • AA: use #947100 as the text (4.54:1)
  • AAA: use #6b5200 as the text (7.42:1)
  • AA: or shift the background to #595959 (4.61:1)
  • AAA: or shift the background to #3d3d3d (7.15:1)
Aaon black
13.81:1passpasspassPasses 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 #ffcb1f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#ffcb1f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ffcb1f
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 #ffcb1f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ffcb1f-c4bf9c-62adcb-2a2d1f-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