Color

#78dc41

#78dc41
hex#78dc41
rgbrgb(120, 220, 65)
hslhsl(99, 69%, 56%)
oklchoklch(0.804 0.21 136.7)
Closest name: yellowgreen (#9acd32)Relative luminance 0.5556

Colors that go with #78dc41

Violet, Hot Pink and Dark Orange 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 →

#a641dc

#c5dc41 · #41dc59

#4178dc · #dc4178

Split-complementary

Open in tool →

#5941dc · #dc41c5

#41c5dc · #a641dc · #dc5941

Contrast

#78dc41 as textRatioAAAA largeAAAFix
Aaon white
1.73:1failfailfail
  • AA: use #3f8619 as the text (4.53:1)
  • AAA: use #2f6312 as the text (7.21:1)
  • AA: or shift the background to #525252 (4.51:1)
  • AAA: or shift the background to #333333 (7.29:1)
Aaon black
12.11:1passpasspassPasses 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 #78dc41 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 #78dc41
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 #78dc41 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/78dc41-a8bea2-664edf-1f2d21-f0f1e9?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