Color

#3f2134

#3f2134
hex#3f2134
rgbrgb(63, 33, 52)
hslhsl(322, 31%, 19%)
oklchoklch(0.295 0.054 342.4)
Closest name: Castro (#44232f)Relative luminance 0.0239

Colors that go with #3f2134

Charcoal, Dark Olive Green and Sienna 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 →

#213f2c

#3b213f · #3f2125

#343f21 · #21343f

Split-complementary

Open in tool →

#253f21 · #213f3b

#3f3b21 · #213f2c · #21253f

Contrast

#3f2134 as textRatioAAAA largeAAAFix
Aaon white
14.2:1passpasspassPasses AAA — no fix needed.
Aaon black
1.48:1failfailfail
  • AA: use #a95b8c as the text (4.56:1)
  • AAA: use #be83a8 as the text (7:1)
  • AA: or shift the background to #919191 (4.51:1)
  • AAA: or shift the background to #b8b8b8 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f2134 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

#3f2134 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f2134
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 #3f2134 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f2134-c19fb1-6ecb62-2d1f22-f0e9f1?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