Color

#40302b

#40302b
hex#40302b
rgbrgb(64, 48, 43)
hslhsl(14, 20%, 21%)
oklchoklch(0.326 0.025 38.1)
Closest name: Cola (#3c2f23)Relative luminance 0.0338

Colors that go with #40302b

Amber, Blue and Blush Pink 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 #40302b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#2b3b40

#402b31 · #403b2b

#2b4030 · #302b40

Split-complementary

Open in tool →

#2b403b · #2b3140

#31402b · #2b3b40 · #3b2b40

Contrast

#40302b as textRatioAAAA largeAAAFix
Aaon white
12.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.68:1failfailfail
  • AA: use #936d62 as the text (4.6:1)
  • AAA: use #af9188 as the text (7.23:1)
  • AA: or shift the background to #9c9c9c (4.56:1)
  • AAA: or shift the background to #c2c2c2 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40302b as the background.

Brands using this color

Fonts for this mood

#40302b reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #40302b
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 #40302b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40302b-c4aa9c-62cbb1-2d291f-f1e9eb?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