Color

#667f7e

#667f7e
hex#667f7e
rgbrgb(102, 127, 126)
hslhsl(178, 11%, 45%)
oklchoklch(0.577 0.029 193.4)
Closest name: Blue Blood (#6b7f81)Relative luminance 0.1951

Colors that go with #667f7e

Charcoal, Champagne and Cobalt Blue 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 #667f7e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7f6667

#667f72 · #66747f

#7f667f · #7f7f66

Split-complementary

Open in tool →

#7f6674 · #7f7266

#72667f · #7f6667 · #747f66

Contrast

#667f7e as textRatioAAAA largeAAAFix
Aaon white
4.28:1failpassfail
  • AA: use #627a79 as the text (4.59:1)
  • AAA: use #495b5a as the text (7.17:1)
  • AA: or shift the background to #0d0d0d (4.54:1)
Aaon black
4.9:1passpassfail
  • AAA: use #829b9a as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #667f7e 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 #667f7e
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 #667f7e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/667f7e-a2bcbe-d45999-1f282d-e9f1ed?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