Color

#c3e30d

#c3e30d
hex#c3e30d
rgbrgb(195, 227, 13)
hslhsl(69, 89%, 47%)
oklchoklch(0.862 0.202 119.5)
Closest name: Bitter Lemon (#d2db32)Relative luminance 0.6657

Colors that go with #c3e30d

Blue, Cornflower Blue 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 →

#2d0de3

#e3980d · #58e30d

#0dc3e3 · #e30dc3

Split-complementary

Open in tool →

#0d58e3 · #980de3

#0de398 · #2d0de3 · #e30d58

Contrast

#c3e30d as textRatioAAAA largeAAAFix
Aaon white
1.47:1failfailfail
  • AA: use #6c7d07 as the text (4.59:1)
  • AAA: use #4f5c05 as the text (7.33:1)
  • AA: or shift the background to #5c5c5c (4.56:1)
  • AAA: or shift the background to #404040 (7.07:1)
Aaon black
14.31:1passpasspassPasses 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 #c3e30d 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 #c3e30d
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 #c3e30d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c3e30d-b7bea2-4e7edf-252d1f-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