Color

#55667c

#55667c
hex#55667c
rgbrgb(85, 102, 124)
hslhsl(214, 19%, 41%)
oklchoklch(0.505 0.041 255)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1289

Colors that go with #55667c

Charcoal, Sea Green and Sienna 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7c6b55

#557a7c · #57557c

#7c5566 · #667c55

Split-complementary

Open in tool →

#7c5755 · #7a7c55

#7c557a · #7c6b55 · #557c57

Contrast

#55667c as textRatioAAAA largeAAAFix
Aaon white
5.87:1passpassfail
  • AAA: use #4a596d as the text (7.14:1)
Aaon black
3.58:1failpassfail
  • AA: use #637792 as the text (4.58:1)
  • AAA: use #8999ae as the text (7.23:1)
  • AA: or shift the background to #e3e3e3 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #55667c as the background.

Brands using this color

mcpConnect your agent — build around #55667c
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 #55667c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/55667c-9ca9c4-df5a4e-1f1f2d-e9f0f1?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