Color

#643b16

#643b16
hex#643b16
rgbrgb(100, 59, 22)
hslhsl(28, 64%, 24%)
oklchoklch(0.395 0.077 59.4)
Closest name: Brown (#653700)Relative luminance 0.059

Colors that go with #643b16

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 #643b16

Tints & shades

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

Harmonies

Complementary

Open in tool →

#164064

#641619 · #646216

#16643b · #3b1664

Split-complementary

Open in tool →

#166462 · #161964

#196416 · #164064 · #621664

Contrast

#643b16 as textRatioAAAA largeAAAFix
Aaon white
9.64:1passpasspassPasses AAA — no fix needed.
Aaon black
2.18:1failfailfail
  • AA: use #ab6426 as the text (4.58:1)
  • AAA: use #d4823a as the text (7.05:1)
  • AA: or shift the background to #b3b3b3 (4.6:1)
  • AAA: or shift the background to #dedede (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 #643b16 as the background.

Brands using this color

Fonts for this mood

#643b16 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #643b16
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 #643b16 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/643b16-c4b39c-62cbc9-2d2c1f-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