Color

#428137

#428137
hex#428137
rgbrgb(66, 129, 55)
hslhsl(111, 40%, 36%)
oklchoklch(0.543 0.126 140.8)
Closest name: Overgrown Mausoleum (#448833)Relative luminance 0.1713

Colors that go with #428137

Charcoal, Royal Blue and Dark Orchid 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 →

#763781

#678137 · #378151

#374281 · #813742

Split-complementary

Open in tool →

#513781 · #813767

#376781 · #763781 · #815137

Contrast

#428137 as textRatioAAAA largeAAAFix
Aaon white
4.74:1passpassfail
Aaon black
4.43:1failpassfail
  • AA: use #448439 as the text (4.61:1)
  • AAA: use #56a848 as the text (7.09:1)
  • AA: or shift the background to #fafafa (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #428137 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 #428137
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 #428137 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/428137-a3bea2-834edf-1f2d23-eef1e9?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