Color

#667299

#667299
hex#667299
rgbrgb(102, 114, 153)
hslhsl(226, 20%, 50%)
oklchoklch(0.558 0.062 271.1)
Closest name: Bureaucracy (#746c8f)Relative luminance 0.1716

Colors that go with #667299

Charcoal, Sea Green 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 #667299

Tints & shades

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

Harmonies

Complementary

Open in tool →

#998d66

#668b99 · #746699

#996672 · #729966

Split-complementary

Open in tool →

#997466 · #8b9966

#99668b · #998d66 · #669974

Contrast

#667299 as textRatioAAAA largeAAAFix
Aaon white
4.74:1passpassfail
  • AAA: use #4e5774 as the text (7.14:1)
Aaon black
4.43:1failpassfail
  • AA: use #69759b as the text (4.62:1)
  • AAA: use #8e97b4 as the text (7.24:1)
  • AA: or shift the background to #fafafa (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #667299 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 #667299
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 #667299 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/667299-9ca1c4-df774e-221f2d-e9eff1?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