Color

#428e2f

#428e2f
hex#428e2f
rgbrgb(66, 142, 47)
hslhsl(108, 50%, 37%)
oklchoklch(0.578 0.151 139.9)
Closest name: Overgrown Mausoleum (#448833)Relative luminance 0.2071

Colors that go with #428e2f

Charcoal, Crimson 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 →

#7b2f8e

#718e2f · #2f8e4b

#2f428e · #8e2f42

Split-complementary

Open in tool →

#4b2f8e · #8e2f71

#2f718e · #7b2f8e · #8e4b2f

Contrast

#428e2f as textRatioAAAA largeAAAFix
Aaon white
4.08:1failpassfail
  • AA: use #3e862d as the text (4.51:1)
  • AAA: use #2e6321 as the text (7.18:1)
  • AA: or shift the background to #141414 (4.51:1)
Aaon black
5.14:1passpassfail
  • AAA: use #50ac39 as the text (7.3:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #428e2f 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 #428e2f
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 #428e2f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/428e2f-a4bea2-7c4edf-1f2d23-eff1e9?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