Color

#ffdd1f

#ffdd1f
hex#ffdd1f
rgbrgb(255, 221, 31)
hslhsl(51, 100%, 56%)
oklchoklch(0.899 0.181 97.4)
Closest name: Angel’s Trumpet (#f6dd34)Relative luminance 0.7307

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1f40ff

#ff6d1f · #b0ff1f

#1fffdd · #dd1fff

Split-complementary

Open in tool →

#1fb0ff · #6d1fff

#1fff6d · #1f40ff · #ff1fb0

Contrast

#ffdd1f as textRatioAAAA largeAAAFix
Aaon white
1.34:1failfailfail
  • AA: use #8a7500 as the text (4.54:1)
  • AAA: use #665700 as the text (7.17:1)
  • AA: or shift the background to #616161 (4.6:1)
  • AAA: or shift the background to #454545 (7.13:1)
Aaon black
15.61:1passpasspassPasses 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 #ffdd1f as the background.

Brands using this color

Fonts for this mood

#ffdd1f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ffdd1f
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #ffdd1f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ffdd1f-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