Color

#c3e53e

#c3e53e
hex#c3e53e
rgbrgb(195, 229, 62)
hslhsl(72, 76%, 57%)
oklchoklch(0.868 0.187 120.7)
Closest name: Inchworm (#b2ec5d)Relative luminance 0.6799

Colors that go with #c3e53e

Charcoal, Blue and Cornflower Blue 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 →

#5f3ee5

#e5b33e · #70e53e

#3ec3e5 · #e53ec3

Split-complementary

Open in tool →

#3e70e5 · #b33ee5

#3ee5b3 · #5f3ee5 · #e53e70

Contrast

#c3e53e as textRatioAAAA largeAAAFix
Aaon white
1.44:1failfailfail
  • AA: use #687e11 as the text (4.58:1)
  • AAA: use #4e5e0d as the text (7.17:1)
  • AA: or shift the background to #5e5e5e (4.51:1)
  • AAA: or shift the background to #404040 (7.21:1)
Aaon black
14.6:1passpasspassPasses 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 #c3e53e 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 #c3e53e
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 #c3e53e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c3e53e-b5bea2-4e77df-242d1f-f1efe9?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