Color

#647a5c

#647a5c
hex#647a5c
rgbrgb(100, 122, 92)
hslhsl(104, 14%, 42%)
oklchoklch(0.553 0.052 137.4)
Closest name: Clouded Pine (#628468)Relative luminance 0.174

Colors that go with #647a5c

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.

Real palettes that use #647a5c

Tints & shades

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

Harmonies

Complementary

Open in tool →

#725c7a

#737a5c · #5c7a63

#5c647a · #7a5c64

Split-complementary

Open in tool →

#635c7a · #7a5c73

#5c737a · #725c7a · #7a635c

Contrast

#647a5c as textRatioAAAA largeAAAFix
Aaon white
4.69:1passpassfail
  • AAA: use #4c5d46 as the text (7.09:1)
Aaon black
4.48:1failpassfail
  • AA: use #667d5e as the text (4.66:1)
  • AAA: use #859c7c as the text (7.04:1)
  • AA: or shift the background to #fcfcfc (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 #647a5c 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

mcpConnect your agent — build around #647a5c
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 #647a5c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/647a5c-a6bea2-724edf-1f2d22-eff1e9?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