Color

#3b3c39

#3b3c39
hex#3b3c39
rgbrgb(59, 60, 57)
hslhsl(80, 3%, 23%)
oklchoklch(0.354 0.005 121.7)
Closest name: Black Olive (#3b3c36)Relative luminance 0.0446

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3a393c

#3c3c39 · #393c39

#393b3c · #3c393b

Split-complementary

Open in tool →

#39393c · #3c393c

#393c3c · #3a393c · #3c3939

Contrast

#3b3c39 as textRatioAAAA largeAAAFix
Aaon white
11.1:1passpasspassPasses AAA — no fix needed.
Aaon black
1.89:1failfailfail
  • AA: use #74766f as the text (4.56:1)
  • AAA: use #959791 as the text (7.11:1)
  • AA: or shift the background to #a6a6a6 (4.56:1)
  • AAA: or shift the background to #cfcfcf (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 #3b3c39 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

#3b3c39 reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3b3c39
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3b3c39 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b3c39-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