Color

#ddf42f

#ddf42f
hex#ddf42f
rgbrgb(221, 244, 47)
hslhsl(67, 90%, 57%)
oklchoklch(0.919 0.201 116.7)
Closest name: Banana Flash (#eefe02)Relative luminance 0.8028

Colors that go with #ddf42f

Blue, Charcoal and Crimson 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 →

#462ff4

#f4a82f · #7af42f

#2fddf4 · #f42fdd

Split-complementary

Open in tool →

#2f7af4 · #a82ff4

#2ff4a8 · #462ff4 · #f42f7a

Contrast

#ddf42f as textRatioAAAA largeAAAFix
Aaon white
1.23:1failfailfail
  • AA: use #6c7906 as the text (4.8:1)
  • AAA: use #525c05 as the text (7.26:1)
  • AA: or shift the background to #666666 (4.66:1)
  • AAA: or shift the background to #4a4a4a (7.2:1)
Aaon black
17.06:1passpasspassPasses 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 #ddf42f as the background.

Brands using this color

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

mcpConnect your agent — build around #ddf42f
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 #ddf42f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ddf42f-b8bea2-4e83df-262d1f-f1eee9?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