Color

#644f64

#644f64
hex#644f64
rgbrgb(100, 79, 100)
hslhsl(300, 12%, 35%)
oklchoklch(0.457 0.043 326.2)
Closest name: Fedora (#625665)Relative luminance 0.0922

Colors that go with #644f64

Teal, Sea Green 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.

Real palettes that use #644f64

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4f644f

#594f64 · #644f59

#64644f · #4f6464

Split-complementary

Open in tool →

#59644f · #4f6459

#64594f · #4f644f · #4f5964

Contrast

#644f64 as textRatioAAAA largeAAAFix
Aaon white
7.38:1passpasspassPasses AAA — no fix needed.
Aaon black
2.84:1failfailfail
  • AA: use #896c89 as the text (4.57:1)
  • AAA: use #a790a7 as the text (7.19:1)
  • AA: or shift the background to #cccccc (4.6:1)
  • AAA: or shift the background to #fafafa (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #644f64 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

#644f64 reads as warm, muted, editorial. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #644f64
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 #644f64 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/644f64-c19fbd-95cb62-2d1f27-ede9f1?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