Color

#ffdd57

#ffdd57
hex#ffdd57
rgbrgb(255, 221, 87)
hslhsl(48, 100%, 67%)
oklchoklch(0.902 0.153 94.8)
Closest name: Anna Banana (#f5d547)Relative luminance 0.7366

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5778ff

#ff8957 · #cdff57

#57ffdd · #dd57ff

Split-complementary

Open in tool →

#57cdff · #8957ff

#57ff89 · #5778ff · #ff57cd

Contrast

#ffdd57 as textRatioAAAA largeAAAFix
Aaon white
1.33:1failfailfail
  • AA: use #8f7200 as the text (4.59:1)
  • AAA: use #6b5600 as the text (7.1:1)
  • AA: or shift the background to #636363 (4.5:1)
  • AAA: or shift the background to #454545 (7.18:1)
Aaon black
15.73:1passpasspassPasses 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 #ffdd57 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#ffdd57 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ffdd57
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 #ffdd57 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ffdd57-c4c09c-62aacb-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