Color

#557182

#557182
hex#557182
rgbrgb(85, 113, 130)
hslhsl(203, 21%, 42%)
oklchoklch(0.533 0.042 235.3)
Closest name: Ashen Whisper (#646b7a)Relative luminance 0.1535

Colors that go with #557182

Charcoal, Sienna 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 #557182

Tints & shades

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

Harmonies

Complementary

Open in tool →

#826655

#55827c · #555a82

#825570 · #708255

Split-complementary

Open in tool →

#82555a · #827c55

#7c5582 · #826655 · #5a8255

Contrast

#557182 as textRatioAAAA largeAAAFix
Aaon white
5.16:1passpassfail
  • AAA: use #445b69 as the text (7.13:1)
Aaon black
4.07:1failpassfail
  • AA: use #5b788b as the text (4.5:1)
  • AAA: use #7d99aa as the text (7.01:1)
  • AA: or shift the background to #f0f0f0 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #557182 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 #557182
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 #557182 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/557182-9cb0c4-df4e5d-1f222d-e9f1f0?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