Color

#557f53

#557f53
hex#557f53
rgbrgb(85, 127, 83)
hslhsl(117, 21%, 41%)
oklchoklch(0.553 0.082 143.3)
Closest name: Beyond the Pines (#688049)Relative luminance 0.1773

Colors that go with #557f53

Charcoal, Medium Purple and Blue 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 →

#7c537f

#6b7f53 · #537f66

#53557f · #7f5355

Split-complementary

Open in tool →

#66537f · #7f536b

#536b7f · #7c537f · #7f6653

Contrast

#557f53 as textRatioAAAA largeAAAFix
Aaon white
4.62:1passpassfail
  • AAA: use #40603e as the text (7.09:1)
Aaon black
4.55:1passpassfail
  • AAA: use #74a271 as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #557f53 as the background.

Brands using this color

mcpConnect your agent — build around #557f53
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 #557f53 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/557f53-a2bea4-924edf-1f2d25-edf1e9?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