Color

#407d3f

#407d3f
hex#407d3f
rgbrgb(64, 125, 63)
hslhsl(119, 33%, 37%)
oklchoklch(0.533 0.113 143.5)
Closest name: Cucumber Queen (#3c773c)Relative luminance 0.1612

Colors that go with #407d3f

Charcoal, Royal Blue and Dark Orchid 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 →

#7c3f7d

#5f7d3f · #3f7d5d

#3f407d · #7d3f40

Split-complementary

Open in tool →

#5d3f7d · #7d3f5f

#3f5f7d · #7c3f7d · #7d5d3f

Contrast

#407d3f as textRatioAAAA largeAAAFix
Aaon white
4.97:1passpassfail
  • AAA: use #326232 as the text (7.17:1)
Aaon black
4.22:1failpassfail
  • AA: use #448443 as the text (4.63:1)
  • AAA: use #57aa55 as the text (7.29:1)
  • AA: or shift the background to #f5f5f5 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #407d3f 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 #407d3f
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 #407d3f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/407d3f-a2bea5-964edf-1f2d25-edf1e9?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