Color

#643f41

#643f41
hex#643f41
rgbrgb(100, 63, 65)
hslhsl(357, 23%, 32%)
oklchoklch(0.411 0.052 16)
Closest name: Brunette (#664238)Relative luminance 0.0665

Colors that go with #643f41

Teal, Copper and Sage Green 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 #643f41

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f6462

#643f53 · #64503f

#41643f · #3f4164

Split-complementary

Open in tool →

#3f6450 · #3f5364

#53643f · #3f6462 · #503f64

Contrast

#643f41 as textRatioAAAA largeAAAFix
Aaon white
9.02:1passpasspassPasses AAA — no fix needed.
Aaon black
2.33:1failfailfail
  • AA: use #9f6568 as the text (4.54:1)
  • AAA: use #b68b8d as the text (7.07:1)
  • AA: or shift the background to #b8b8b8 (4.55:1)
  • AAA: or shift the background to #e3e3e3 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #643f41 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

#643f41 reads as warm, muted, editorial. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #643f41
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 #643f41 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/643f41-c49f9c-62cb93-2d251f-f1e9ed?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