Color

#40644a

#40644a
hex#40644a
rgbrgb(64, 100, 74)
hslhsl(137, 22%, 32%)
oklchoklch(0.468 0.059 152.4)
Closest name: Forest Serenade (#336644)Relative luminance 0.107

Colors that go with #40644a

Charcoal, Blue and Cadet 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.

Real palettes that use #40644a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#644059

#476440 · #40645c

#4a4064 · #644a40

Split-complementary

Open in tool →

#5c4064 · #644047

#404764 · #644059 · #645c40

Contrast

#40644a as textRatioAAAA largeAAAFix
Aaon white
6.69:1passpassfail
  • AAA: use #3e6048 as the text (7.07:1)
Aaon black
3.14:1failpassfail
  • AA: use #52805f as the text (4.61:1)
  • AAA: use #6da27c as the text (7.11:1)
  • AA: or shift the background to #d4d4d4 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40644a 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 #40644a
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 #40644a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40644a-a2bead-bb59d4-1f2d29-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