Color

#78d123

#78d123
hex#78d123
rgbrgb(120, 209, 35)
hslhsl(91, 71%, 48%)
oklchoklch(0.775 0.212 134.1)
Closest name: Blinking Terminal (#66cc00)Relative luminance 0.4972

Colors that go with #78d123

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 →

#7d23d1

#ced123 · #23d126

#2378d1 · #d12378

Split-complementary

Open in tool →

#2623d1 · #d123ce

#23ced1 · #7d23d1 · #d12623

Contrast

#78d123 as textRatioAAAA largeAAAFix
Aaon white
1.92:1failfailfail
  • AA: use #4b8316 as the text (4.61:1)
  • AAA: use #376010 as the text (7.39:1)
  • AA: or shift the background to #4a4a4a (4.62:1)
  • AAA: or shift the background to #2e2e2e (7.08:1)
Aaon black
10.94:1passpasspassPasses 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 #78d123 as the background.

Brands using this color

mcpConnect your agent — build around #78d123
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 #78d123 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/78d123-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