Color

#556277

#556277
hex#556277
rgbrgb(85, 98, 119)
hslhsl(217, 17%, 40%)
oklchoklch(0.493 0.037 259.9)
Closest name: Admiral Blue (#50647f)Relative luminance 0.12

Colors that go with #556277

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 →

#776a55

#557377 · #595577

#775562 · #627755

Split-complementary

Open in tool →

#775955 · #737755

#775573 · #776a55 · #557759

Contrast

#556277 as textRatioAAAA largeAAAFix
Aaon white
6.18:1passpassfail
  • AAA: use #4c586b as the text (7.2:1)
Aaon black
3.4:1failpassfail
  • AA: use #66768f as the text (4.55:1)
  • AAA: use #8b98ac as the text (7.18:1)
  • AA: or shift the background to #dedede (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #556277 as the background.

Brands using this color

mcpConnect your agent — build around #556277
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 #556277 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/556277-9ca7c4-df624e-201f2d-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