Color

#645f44

#645f44
hex#645f44
rgbrgb(100, 95, 68)
hslhsl(51, 19%, 33%)
oklchoklch(0.483 0.041 98.9)
Closest name: Cypress (#585d40)Relative luminance 0.1131

Colors that go with #645f44

Charcoal, Slate Blue and Champagne 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#444964

#644f44 · #596444

#44645f · #5f4464

Split-complementary

Open in tool →

#445964 · #4f4464

#44644f · #444964 · #644459

Contrast

#645f44 as textRatioAAAA largeAAAFix
Aaon white
6.44:1passpassfail
  • AAA: use #5b573e as the text (7.3:1)
Aaon black
3.26:1failpassfail
  • AA: use #7c7655 as the text (4.58:1)
  • AAA: use #9e9770 as the text (7.11:1)
  • AA: or shift the background to #d9d9d9 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #645f44 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#645f44 reads as warm, muted, editorial. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #645f44
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 #645f44 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/645f44-c4c29c-4eaadf-292d1f-f1ece9?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