Color

#403b44

#403b44
hex#403b44
rgbrgb(64, 59, 68)
hslhsl(273, 7%, 25%)
oklchoklch(0.361 0.017 310.2)
Closest name: Black Truffle (#463d3e)Relative luminance 0.0464

Colors that go with #403b44

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 #403b44

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f443b

#3c3b44 · #443b44

#44403b · #3b4440

Split-complementary

Open in tool →

#44443b · #3b443c

#443c3b · #3f443b · #3b4444

Contrast

#403b44 as textRatioAAAA largeAAAFix
Aaon white
10.9:1passpasspassPasses AAA — no fix needed.
Aaon black
1.93:1failfailfail
  • AA: use #7b7283 as the text (4.58:1)
  • AAA: use #9c95a3 as the text (7.24:1)
  • AA: or shift the background to #a8a8a8 (4.58:1)
  • AAA: or shift the background to #d1d1d1 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #403b44 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

#403b44 reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #403b44
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 #403b44 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/403b44-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