Color

#406d4a

#406d4a
hex#406d4a
rgbrgb(64, 109, 74)
hslhsl(133, 26%, 34%)
oklchoklch(0.492 0.075 150)
Closest name: Forest Serenade (#336644)Relative luminance 0.1252

Colors that go with #406d4a

Charcoal, Royal Blue and Medium Violet Red 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 →

#6d4063

#4d6d40 · #406d60

#4a406d · #6d4a40

Split-complementary

Open in tool →

#60406d · #6d404d

#404d6d · #6d4063 · #6d6040

Contrast

#406d4a as textRatioAAAA largeAAAFix
Aaon white
5.99:1passpassfail
  • AAA: use #396041 as the text (7.18:1)
Aaon black
3.5:1failpassfail
  • AA: use #4b8157 as the text (4.58:1)
  • AAA: use #65a473 as the text (7.11:1)
  • AA: or shift the background to #e0e0e0 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #406d4a as the background.

Brands using this color

mcpConnect your agent — build around #406d4a
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 #406d4a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/406d4a-a2beab-b84edf-1f2d28-ebf1e9?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