Color

#667c93

#667c93
hex#667c93
rgbrgb(102, 124, 147)
hslhsl(211, 18%, 49%)
oklchoklch(0.577 0.044 249.7)
Closest name: Citadel (#6a7f8b)Relative luminance 0.1935

Colors that go with #667c93

Charcoal, Copper and Amber 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 #667c93

Tints & shades

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

Harmonies

Complementary

Open in tool →

#937e66

#669393 · #676693

#93667c · #7c9366

Split-complementary

Open in tool →

#936766 · #939366

#936693 · #937e66 · #669367

Contrast

#667c93 as textRatioAAAA largeAAAFix
Aaon white
4.31:1failpassfail
  • AA: use #62778d as the text (4.62:1)
  • AAA: use #495969 as the text (7.2:1)
  • AA: or shift the background to #0d0d0d (4.51:1)
Aaon black
4.87:1passpassfail
  • AAA: use #8798ab as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #667c93 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 #667c93
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 #667c93 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/667c93-9cabc4-df534e-1f202d-e9f1f1?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