Color

#428d3a

#428d3a
hex#428d3a
rgbrgb(66, 141, 58)
hslhsl(114, 42%, 39%)
oklchoklch(0.576 0.14 141.8)
Closest name: Overgrown Mausoleum (#448833)Relative luminance 0.2051

Colors that go with #428d3a

Charcoal, Royal Blue and Copper 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 →

#853a8d

#6c8d3a · #3a8d5b

#3a428d · #8d3a42

Split-complementary

Open in tool →

#5b3a8d · #8d3a6c

#3a6c8d · #853a8d · #8d5b3a

Contrast

#428d3a as textRatioAAAA largeAAAFix
Aaon white
4.12:1failpassfail
  • AA: use #3d8235 as the text (4.73:1)
  • AAA: use #2e6228 as the text (7.26:1)
  • AA: or shift the background to #121212 (4.55:1)
Aaon black
5.1:1passpassfail
  • AAA: use #50aa46 as the text (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #428d3a 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 #428d3a
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 #428d3a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/428d3a-a2bea2-8a4edf-1f2d24-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