Color

#40413a

#40413a
hex#40413a
rgbrgb(64, 65, 58)
hslhsl(69, 6%, 24%)
oklchoklch(0.372 0.012 113.6)
Closest name: Black Panther (#424242)Relative luminance 0.0518

Colors that go with #40413a

Blue, Blush Pink and Burlywood 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 #40413a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3b3a41

#413e3a · #3c413a

#3a4041 · #413a40

Split-complementary

Open in tool →

#3a3c41 · #3e3a41

#3a413e · #3b3a41 · #413a3c

Contrast

#40413a as textRatioAAAA largeAAAFix
Aaon white
10.32:1passpasspassPasses AAA — no fix needed.
Aaon black
2.04:1failfailfail
  • AA: use #757769 as the text (4.6:1)
  • AAA: use #96988b as the text (7.16:1)
  • AA: or shift the background to #adadad (4.6:1)
  • AAA: or shift the background to #d6d6d6 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40413a 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

Fonts for this mood

#40413a reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40413a
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 #40413a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40413a-a2beb0-c859d4-1f2d2b-eaf1e9?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