Color

#78c828

#78c828
hex#78c828
rgbrgb(120, 200, 40)
hslhsl(90, 67%, 47%)
oklchoklch(0.753 0.2 133.4)
Closest name: Blinking Terminal (#66cc00)Relative luminance 0.4545

Colors that go with #78c828

Blue, Charcoal and Taupe 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 →

#7828c8

#c8c828 · #28c828

#2878c8 · #c82878

Split-complementary

Open in tool →

#2828c8 · #c828c8

#28c8c8 · #7828c8 · #c82828

Contrast

#78c828 as textRatioAAAA largeAAAFix
Aaon white
2.08:1failfailfail
  • AA: use #4f841a as the text (4.52:1)
  • AAA: use #3b6213 as the text (7.14:1)
  • AA: or shift the background to #454545 (4.61:1)
  • AAA: or shift the background to #262626 (7.27:1)
Aaon black
10.09:1passpasspassPasses 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 #78c828 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 #78c828
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 #78c828 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/78c828-adbea2-514edf-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