Color

#407d2b

#407d2b
hex#407d2b
rgbrgb(64, 125, 43)
hslhsl(105, 49%, 33%)
oklchoklch(0.53 0.132 138.6)
Closest name: Cucumber Queen (#3c773c)Relative luminance 0.1593

Colors that go with #407d2b

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 →

#692b7d

#697d2b · #2b7d40

#2b407d · #7d2b40

Split-complementary

Open in tool →

#402b7d · #7d2b69

#2b697d · #692b7d · #7d402b

Contrast

#407d2b as textRatioAAAA largeAAAFix
Aaon white
5.02:1passpassfail
  • AAA: use #326322 as the text (7.13:1)
Aaon black
4.19:1failpassfail
  • AA: use #43852e as the text (4.63:1)
  • AAA: use #57ab3b as the text (7.29:1)
  • AA: or shift the background to #f5f5f5 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #407d2b as the background.

Brands using this color

mcpConnect your agent — build around #407d2b
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 #407d2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/407d2b-a6bea2-754edf-1f2d22-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