Color

#78de63

#78de63
hex#78de63
rgbrgb(120, 222, 99)
hslhsl(110, 65%, 63%)
oklchoklch(0.812 0.188 140.3)
Closest name: Grotesque Green (#64e986)Relative luminance 0.5714

Colors that go with #78de63

Deep Sky Blue, Taupe 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 →

#ca63de

#b5de63 · #63de8c

#6378de · #de6378

Split-complementary

Open in tool →

#8c63de · #de63b5

#63b5de · #ca63de · #de8c63

Contrast

#78de63 as textRatioAAAA largeAAAFix
Aaon white
1.69:1failfailfail
  • AA: use #2e871d as the text (4.57:1)
  • AAA: use #236515 as the text (7.13:1)
  • AA: or shift the background to #525252 (4.62:1)
  • AAA: or shift the background to #363636 (7.15:1)
Aaon black
12.43:1passpasspassPasses 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 #78de63 as the background.

Brands using this color

mcpConnect your agent — build around #78de63
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 #78de63 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/78de63-a3bea2-814edf-1f2d23-eef1e9?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