Color

#40645d

#40645d
hex#40645d
rgbrgb(64, 100, 93)
hslhsl(168, 22%, 32%)
oklchoklch(0.474 0.043 180.8)
Closest name: Ethereal Woods (#3e5e4e)Relative luminance 0.1099

Colors that go with #40645d

Cadet Blue, Champagne and Copper 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.

Real palettes that use #40645d

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#644047

#40644a · #405964

#5c4064 · #645c40

Split-complementary

Open in tool →

#644059 · #644a40

#4a4064 · #644047 · #596440

Contrast

#40645d as textRatioAAAA largeAAAFix
Aaon white
6.56:1passpassfail
  • AAA: use #3c5d57 as the text (7.25:1)
Aaon black
3.2:1failpassfail
  • AA: use #528076 as the text (4.71:1)
  • AAA: use #6aa095 as the text (7.08:1)
  • AA: or shift the background to #d6d6d6 (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 #40645d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #40645d
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 #40645d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40645d-a2bebc-d459ad-1f2a2d-e9f1ec?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