Color

#643a4e

#643a4e
hex#643a4e
rgbrgb(100, 58, 78)
hslhsl(331, 27%, 31%)
oklchoklch(0.406 0.066 350.4)
Closest name: Eggplant (#614051)Relative luminance 0.0629

Colors that go with #643a4e

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 #643a4e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3a6450

#643a64 · #643a3a

#4e643a · #3a4e64

Split-complementary

Open in tool →

#3a643a · #3a6464

#64643a · #3a6450 · #3a3a64

Contrast

#643a4e as textRatioAAAA largeAAAFix
Aaon white
9.3:1passpasspassPasses AAA — no fix needed.
Aaon black
2.26:1failfailfail
  • AA: use #a46081 as the text (4.57:1)
  • AAA: use #ba87a0 as the text (7.06:1)
  • AA: or shift the background to #b5b5b5 (4.54:1)
  • AAA: or shift the background to #e0e0e0 (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 #643a4e 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

#643a4e reads as warm, muted, editorial. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #643a4e
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 #643a4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/643a4e-c49cab-62cb66-2d1f20-f1e9f1?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