Color

#55617c

#55617c
hex#55617c
rgbrgb(85, 97, 124)
hslhsl(222, 19%, 41%)
oklchoklch(0.493 0.046 266)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1194

Colors that go with #55617c

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7c7055

#55747c · #5d557c

#7c5561 · #617c55

Split-complementary

Open in tool →

#7c5d55 · #747c55

#7c5574 · #7c7055 · #557c5d

Contrast

#55617c as textRatioAAAA largeAAAFix
Aaon white
6.2:1passpassfail
  • AAA: use #4c5770 as the text (7.23:1)
Aaon black
3.39:1failpassfail
  • AA: use #677698 as the text (4.62:1)
  • AAA: use #8c97b1 as the text (7.18:1)
  • AA: or shift the background to #dedede (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #55617c as the background.

Brands using this color

mcpConnect your agent — build around #55617c
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 #55617c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/55617c-9ca3c4-df6e4e-211f2d-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