Color

#667f7b

#667f7b
hex#667f7b
rgbrgb(102, 127, 123)
hslhsl(170, 11%, 45%)
oklchoklch(0.576 0.03 184.5)
Closest name: Blue Blood (#6b7f81)Relative luminance 0.1943

Colors that go with #667f7b

Charcoal, Champagne and Copper 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 #667f7b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7f666a

#667f6f · #66777f

#7b667f · #7f7b66

Split-complementary

Open in tool →

#7f6677 · #7f6f66

#6f667f · #7f666a · #777f66

Contrast

#667f7b as textRatioAAAA largeAAAFix
Aaon white
4.3:1failpassfail
  • AA: use #627a76 as the text (4.6:1)
  • AAA: use #495b58 as the text (7.19:1)
  • AA: or shift the background to #0d0d0d (4.52:1)
Aaon black
4.89:1passpassfail
  • AAA: use #829b97 as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #667f7b 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 #667f7b
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 #667f7b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/667f7b-a2bebd-d459a9-1f292d-e9f1ec?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