Color

#557d4a

#557d4a
hex#557d4a
rgbrgb(85, 125, 74)
hslhsl(107, 26%, 39%)
oklchoklch(0.546 0.088 139.1)
Closest name: Mana Tree (#4f7942)Relative luminance 0.1709

Colors that go with #557d4a

Charcoal, Dark Orchid 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 →

#724a7d

#6f7d4a · #4a7d58

#4a557d · #7d4a55

Split-complementary

Open in tool →

#584a7d · #7d4a6f

#4a6f7d · #724a7d · #7d584a

Contrast

#557d4a as textRatioAAAA largeAAAFix
Aaon white
4.75:1passpassfail
  • AAA: use #416039 as the text (7.1:1)
Aaon black
4.42:1failpassfail
  • AA: use #57814b as the text (4.65:1)
  • AAA: use #70a362 as the text (7.1:1)
  • AA: or shift the background to #fafafa (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #557d4a as the background.

Brands using this color

mcpConnect your agent — build around #557d4a
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 #557d4a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/557d4a-a5bea2-7a4edf-1f2d22-eff1e9?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