Color

#643f20

#643f20
hex#643f20
rgbrgb(100, 63, 32)
hslhsl(27, 52%, 26%)
oklchoklch(0.404 0.069 59)
Closest name: Antique Brass (#6c461f)Relative luminance 0.0637

Colors that go with #643f20

Copper, Hunter Green 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 #643f20

Tints & shades

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

Harmonies

Complementary

Open in tool →

#204665

#652023 · #656120

#20653f · #3f2065

Split-complementary

Open in tool →

#206561 · #202365

#236520 · #204665 · #612065

Contrast

#643f20 as textRatioAAAA largeAAAFix
Aaon white
9.24:1passpasspassPasses AAA — no fix needed.
Aaon black
2.27:1failfailfail
  • AA: use #a36633 as the text (4.51:1)
  • AAA: use #c98954 as the text (7.19:1)
  • AA: or shift the background to #b5b5b5 (4.5:1)
  • AAA: or shift the background to #e3e3e3 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #643f20 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

#643f20 reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #643f20
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 #643f20 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/643f20-c4b39c-62cbc7-2d2c1f-f1e9ea?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