Color

#c3de63

#c3de63
hex#c3de63
rgbrgb(195, 222, 99)
hslhsl(73, 65%, 63%)
oklchoklch(0.856 0.152 120.1)
Closest name: Badass Grass (#b4da55)Relative luminance 0.6475

Colors that go with #c3de63

Charcoal, Lilac 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 →

#7e63de

#debb63 · #86de63

#63c3de · #de63c3

Split-complementary

Open in tool →

#6386de · #bb63de

#63debb · #7e63de · #de6386

Contrast

#c3de63 as textRatioAAAA largeAAAFix
Aaon white
1.51:1failfailfail
  • AA: use #697e1b as the text (4.56:1)
  • AAA: use #4d5d14 as the text (7.26:1)
  • AA: or shift the background to #595959 (4.65:1)
  • AAA: or shift the background to #3d3d3d (7.22:1)
Aaon black
13.95:1passpasspassPasses 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 #c3de63 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 #c3de63
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 #c3de63 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c3de63-b5bea2-4e75df-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