Color

#78bb3a

#78bb3a
hex#78bb3a
rgbrgb(120, 187, 58)
hslhsl(91, 53%, 48%)
oklchoklch(0.722 0.174 133)
Closest name: Extra Life (#6ab417)Relative luminance 0.3984

Colors that go with #78bb3a

Charcoal, Dark Olive Green and Royal 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 →

#7d3abb

#b9bb3a · #3abb3c

#3a78bb · #bb3a78

Split-complementary

Open in tool →

#3c3abb · #bb3ab9

#3ab9bb · #7d3abb · #bb3c3a

Contrast

#78bb3a as textRatioAAAA largeAAAFix
Aaon white
2.34:1failfailfail
  • AA: use #538128 as the text (4.63:1)
  • AAA: use #3f621e as the text (7.05:1)
  • AA: or shift the background to #3d3d3d (4.64:1)
  • AAA: or shift the background to #1f1f1f (7.04:1)
Aaon black
8.97:1passpasspassPasses 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 #78bb3a as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #78bb3a
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 #78bb3a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/78bb3a-acbea2-534edf-202d1f-f1f1e9?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