Color

#647f82

#647f82
hex#647f82
rgbrgb(100, 127, 130)
hslhsl(186, 13%, 45%)
oklchoklch(0.576 0.031 204.7)
Closest name: Blue Blood (#6b7f81)Relative luminance 0.195

Colors that go with #647f82

Charcoal, Copper 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 #647f82

Tints & shades

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

Harmonies

Complementary

Open in tool →

#826764

#648276 · #647082

#82647f · #7f8264

Split-complementary

Open in tool →

#826470 · #827664

#766482 · #826764 · #708264

Contrast

#647f82 as textRatioAAAA largeAAAFix
Aaon white
4.29:1failpassfail
  • AA: use #5f797c as the text (4.65:1)
  • AAA: use #475a5c as the text (7.28:1)
  • AA: or shift the background to #0d0d0d (4.53:1)
Aaon black
4.9:1passpassfail
  • AAA: use #809a9d as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #647f82 as the background.

Brands using this color

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

mcpConnect your agent — build around #647f82
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 #647f82 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/647f82-a2b8be-df4e86-1f262d-e9f1ee?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