Color

#def10e

#def10e
hex#def10e
rgbrgb(222, 241, 14)
hslhsl(65, 89%, 50%)
oklchoklch(0.913 0.206 115.4)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.7847

Colors that go with #def10e

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 →

#210ef1

#f1920e · #6df10e

#0edef1 · #f10ede

Split-complementary

Open in tool →

#0e6df1 · #920ef1

#0ef192 · #210ef1 · #f10e6d

Contrast

#def10e as textRatioAAAA largeAAAFix
Aaon white
1.26:1failfailfail
  • AA: use #737d07 as the text (4.5:1)
  • AAA: use #545c05 as the text (7.22:1)
  • AA: or shift the background to #666666 (4.56:1)
  • AAA: or shift the background to #4a4a4a (7.05:1)
Aaon black
16.69:1passpasspassPasses 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 #def10e 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 #def10e
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 #def10e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/def10e-b8bea2-4e88df-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