Color

#def604

#def604
hex#def604
rgbrgb(222, 246, 4)
hslhsl(66, 97%, 49%)
oklchoklch(0.923 0.212 116.7)
Closest name: Banana Flash (#eefe02)Relative luminance 0.8145

Colors that go with #def604

Crimson, Plum and Violet 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 →

#1c04f6

#f69504 · #65f604

#04def6 · #f604de

Split-complementary

Open in tool →

#0465f6 · #9504f6

#04f695 · #1c04f6 · #f60465

Contrast

#def604 as textRatioAAAA largeAAAFix
Aaon white
1.21:1failfailfail
  • AA: use #6d7902 as the text (4.79:1)
  • AAA: use #525a01 as the text (7.44:1)
  • AA: or shift the background to #696969 (4.52:1)
  • AAA: or shift the background to #4a4a4a (7.3:1)
Aaon black
17.29:1passpasspassPasses 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 #def604 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 #def604
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 #def604 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/def604-b8bea2-4e86df-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