Color

#645f40

#645f40
hex#645f40
rgbrgb(100, 95, 64)
hslhsl(52, 22%, 32%)
oklchoklch(0.482 0.047 100.1)
Closest name: Cypress (#585d40)Relative luminance 0.1126

Colors that go with #645f40

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 →

#404464

#644d40 · #566440

#40645f · #5f4064

Split-complementary

Open in tool →

#405664 · #4d4064

#40644d · #404464 · #644056

Contrast

#645f40 as textRatioAAAA largeAAAFix
Aaon white
6.46:1passpassfail
  • AAA: use #5d593c as the text (7.1:1)
Aaon black
3.25:1failpassfail
  • AA: use #7c7650 as the text (4.56:1)
  • AAA: use #9e9667 as the text (7.01:1)
  • AA: or shift the background to #d9d9d9 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #645f40 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#645f40 reads as warm, muted, editorial. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #645f40
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 #645f40 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/645f40-c4c39c-4ea7df-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