Color

#643a3d

#643a3d
hex#643a3d
rgbrgb(100, 58, 61)
hslhsl(356, 27%, 31%)
oklchoklch(0.4 0.06 15.5)
Closest name: Brunette (#664238)Relative luminance 0.0607

Colors that go with #643a3d

Teal, Copper and Crimson 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 #643a3d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3a6462

#643a52 · #644c3a

#3d643a · #3a3d64

Split-complementary

Open in tool →

#3a644c · #3a5264

#52643a · #3a6462 · #4c3a64

Contrast

#643a3d as textRatioAAAA largeAAAFix
Aaon white
9.48:1passpasspassPasses AAA — no fix needed.
Aaon black
2.21:1failfailfail
  • AA: use #a66468 as the text (4.64:1)
  • AAA: use #bc8a8e as the text (7.16:1)
  • AA: or shift the background to #b3b3b3 (4.52:1)
  • AAA: or shift the background to #dedede (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #643a3d 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

#643a3d reads as warm, muted, editorial. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #643a3d
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 #643a3d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/643a3d-c49e9c-62cb91-2d241f-f1e9ee?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