Color

#557f82

#557f82
hex#557f82
rgbrgb(85, 127, 130)
hslhsl(184, 21%, 42%)
oklchoklch(0.567 0.047 201.6)
Closest name: Blue Blood (#6b7f81)Relative luminance 0.1872

Colors that go with #557f82

Charcoal, Amber and Champagne 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 #557f82

Tints & shades

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

Harmonies

Complementary

Open in tool →

#825855

#55826e · #556882

#82557f · #7f8255

Split-complementary

Open in tool →

#825568 · #826e55

#6e5582 · #825855 · #688255

Contrast

#557f82 as textRatioAAAA largeAAAFix
Aaon white
4.43:1failpassfail
  • AA: use #537c7f as the text (4.61:1)
  • AAA: use #3e5d60 as the text (7.14:1)
  • AA: or shift the background to #080808 (4.52:1)
Aaon black
4.74:1passpassfail
  • AAA: use #719fa2 as the text (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #557f82 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 #557f82
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 #557f82 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/557f82-a2b9be-df4e8a-1f262d-e9f1ee?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