Color

#407b23

#407b23
hex#407b23
rgbrgb(64, 123, 35)
hslhsl(100, 56%, 31%)
oklchoklch(0.524 0.135 137.2)
Closest name: Cucumber Queen (#3c773c)Relative luminance 0.1538

Colors that go with #407b23

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 →

#5e237b

#6d7b23 · #237b32

#23407b · #7b2340

Split-complementary

Open in tool →

#32237b · #7b236d

#236d7b · #5e237b · #7b3223

Contrast

#407b23 as textRatioAAAA largeAAAFix
Aaon white
5.15:1passpassfail
  • AAA: use #34631c as the text (7.12:1)
Aaon black
4.08:1failpassfail
  • AA: use #448325 as the text (4.52:1)
  • AAA: use #59ab30 as the text (7.29:1)
  • AA: or shift the background to #f0f0f0 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #407b23 as the background.

Brands using this color

mcpConnect your agent — build around #407b23
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 #407b23 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/407b23-a8bea2-694edf-1f2d21-f0f1e9?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