Color

#40544f

#40544f
hex#40544f
rgbrgb(64, 84, 79)
hslhsl(165, 14%, 29%)
oklchoklch(0.427 0.026 178)
Closest name: All Nighter (#455454)Relative luminance 0.08

Colors that go with #40544f

Blue, Cadet Blue 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 #40544f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#544045

#405445 · #404f54

#4f4054 · #544f40

Split-complementary

Open in tool →

#54404f · #544540

#454054 · #544045 · #4f5440

Contrast

#40544f as textRatioAAAA largeAAAFix
Aaon white
8.08:1passpasspassPasses AAA — no fix needed.
Aaon black
2.6:1failfailfail
  • AA: use #5e7d75 as the text (4.67:1)
  • AAA: use #7c9c94 as the text (7.04:1)
  • AA: or shift the background to #c2c2c2 (4.54:1)
  • AAA: or shift the background to #f0f0f0 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40544f as the background.

Brands using this color

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

Fonts for this mood

#40544f reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40544f
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 #40544f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40544f-a2beba-d459b3-1f2b2d-e9f1eb?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