Color

#393739

#393739
hex#393739
rgbrgb(57, 55, 57)
hslhsl(300, 2%, 22%)
oklchoklch(0.34 0.004 325.7)
Closest name: After Dark (#3c3535)Relative luminance 0.039

Colors that go with #393739

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#373937

#383739 · #393738

#393937 · #373939

Split-complementary

Open in tool →

#383937 · #373938

#393837 · #373937 · #373839

Contrast

#393739 as textRatioAAAA largeAAAFix
Aaon white
11.8:1passpasspassPasses AAA — no fix needed.
Aaon black
1.78:1failfailfail
  • AA: use #787378 as the text (4.52:1)
  • AAA: use #999499 as the text (7.05:1)
  • AA: or shift the background to #a1a1a1 (4.57:1)
  • AAA: or shift the background to #c9c9c9 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #393739 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#393739 reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #393739
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 #393739 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/393739-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