Color

#557c67

#557c67
hex#557c67
rgbrgb(85, 124, 103)
hslhsl(148, 19%, 41%)
oklchoklch(0.551 0.055 160.4)
Closest name: Ecological (#677f70)Relative luminance 0.1733

Colors that go with #557c67

Charcoal, Champagne and Copper 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 #557c67

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7c556a

#567c55 · #557c7b

#67557c · #7c6755

Split-complementary

Open in tool →

#7b557c · #7c5556

#55567c · #7c556a · #7c7b55

Contrast

#557c67 as textRatioAAAA largeAAAFix
Aaon white
4.7:1passpassfail
  • AAA: use #405e4e as the text (7.17:1)
Aaon black
4.47:1failpassfail
  • AA: use #577f6a as the text (4.65:1)
  • AAA: use #73a088 as the text (7.11:1)
  • AA: or shift the background to #fafafa (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #557c67 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #557c67
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 #557c67 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/557c67-a2beb2-d259d4-1f2d2c-eaf1e9?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