Color

#78e42f

#78e42f
hex#78e42f
rgbrgb(120, 228, 47)
hslhsl(96, 77%, 54%)
oklchoklch(0.822 0.229 136.2)
Closest name: Becquerel (#4bec13)Relative luminance 0.5969

Colors that go with #78e42f

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 →

#9c2fe4

#d2e42f · #2fe441

#2f78e4 · #e42f78

Split-complementary

Open in tool →

#412fe4 · #e42fd2

#2fd2e4 · #9c2fe4 · #e4412f

Contrast

#78e42f as textRatioAAAA largeAAAFix
Aaon white
1.62:1failfailfail
  • AA: use #3f8311 as the text (4.7:1)
  • AAA: use #2f630d as the text (7.21:1)
  • AA: or shift the background to #545454 (4.67:1)
  • AAA: or shift the background to #383838 (7.22:1)
Aaon black
12.94:1passpasspassPasses 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 #78e42f 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 #78e42f
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 #78e42f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/78e42f-aabea2-5f4edf-1f2d20-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