Color

#3f4030

#3f4030
hex#3f4030
rgbrgb(63, 64, 48)
hslhsl(64, 14%, 22%)
oklchoklch(0.366 0.026 110.6)
Closest name: Black Olive (#3b3c36)Relative luminance 0.0494

Colors that go with #3f4030

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 #3f4030

Tints & shades

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

Harmonies

Complementary

Open in tool →

#313040

#403930 · #374030

#303f40 · #40303f

Split-complementary

Open in tool →

#303740 · #393040

#304039 · #313040 · #403037

Contrast

#3f4030 as textRatioAAAA largeAAAFix
Aaon white
10.57:1passpasspassPasses AAA — no fix needed.
Aaon black
1.99:1failfailfail
  • AA: use #75775a as the text (4.54:1)
  • AAA: use #969876 as the text (7.05:1)
  • AA: or shift the background to #ababab (4.6:1)
  • AAA: or shift the background to #d4d4d4 (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 #3f4030 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

#3f4030 reads as muted, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f4030
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 #3f4030 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f4030-b9bea2-4e8adf-262d1f-f1eee9?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