Color

#667d93

#667d93
hex#667d93
rgbrgb(102, 125, 147)
hslhsl(209, 18%, 49%)
oklchoklch(0.58 0.043 247.4)
Closest name: Citadel (#6a7f8b)Relative luminance 0.196

Colors that go with #667d93

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 #667d93

Tints & shades

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

Harmonies

Complementary

Open in tool →

#937c66

#669393 · #666793

#93667e · #7e9366

Split-complementary

Open in tool →

#936667 · #939366

#936693 · #937c66 · #679366

Contrast

#667d93 as textRatioAAAA largeAAAFix
Aaon white
4.27:1failpassfail
  • AA: use #62798d as the text (4.53:1)
  • AAA: use #495a69 as the text (7.12:1)
  • AA: or shift the background to #0d0d0d (4.55:1)
Aaon black
4.92:1passpassfail
  • AAA: use #879aab as the text (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #667d93 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 #667d93
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 #667d93 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/667d93-9cacc4-df4e4e-1f212d-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