Color

#427d2b

#427d2b
hex#427d2b
rgbrgb(66, 125, 43)
hslhsl(103, 49%, 33%)
oklchoklch(0.531 0.131 138.1)
Closest name: Cucumber Queen (#3c773c)Relative luminance 0.16

Colors that go with #427d2b

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 →

#662b7d

#6c7d2b · #2b7d3d

#2b427d · #7d2b42

Split-complementary

Open in tool →

#3d2b7d · #7d2b6c

#2b6c7d · #662b7d · #7d3d2b

Contrast

#427d2b as textRatioAAAA largeAAAFix
Aaon white
5:1passpassfail
  • AAA: use #346322 as the text (7.11:1)
Aaon black
4.2:1failpassfail
  • AA: use #46852e as the text (4.65:1)
  • AAA: use #58a739 as the text (7:1)
  • AA: or shift the background to #f5f5f5 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #427d2b as the background.

Brands using this color

mcpConnect your agent — build around #427d2b
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 #427d2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/427d2b-a6bea2-704edf-1f2d21-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