Color

#04c828

#04c828
hex#04c828
rgbrgb(4, 200, 40)
hslhsl(131, 96%, 40%)
oklchoklch(0.723 0.235 143.8)
Closest name: Crude Banana (#21c40e)Relative luminance 0.4149

Colors that go with #04c828

Blue, Charcoal 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 →

#c804a4

#42c804 · #04c88a

#2804c8 · #c82804

Split-complementary

Open in tool →

#8a04c8 · #c80442

#0442c8 · #c804a4 · #c88a04

Contrast

#04c828 as textRatioAAAA largeAAAFix
Aaon white
2.26:1failfailfail
  • AA: use #03871b as the text (4.68:1)
  • AAA: use #026414 as the text (7.41:1)
  • AA: or shift the background to #404040 (4.59:1)
  • AAA: or shift the background to #212121 (7.13:1)
Aaon black
9.3:1passpasspassPasses 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 #04c828 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 #04c828
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 #04c828 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04c828-a2beaa-b34edf-1f2d28-ecf1e9?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