Color

#559b5e

#559b5e
hex#559b5e
rgbrgb(85, 155, 94)
hslhsl(128, 29%, 47%)
oklchoklch(0.627 0.115 146.9)
Closest name: Bulma Hair (#359e6b)Relative luminance 0.2618

Colors that go with #559b5e

Charcoal, Blue 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9b5591

#6f9b55 · #559b81

#5e559b · #9b5e55

Split-complementary

Open in tool →

#81559b · #9b556f

#556f9b · #9b5591 · #9b8155

Contrast

#559b5e as textRatioAAAA largeAAAFix
Aaon white
3.37:1failpassfail
  • AA: use #47804e as the text (4.7:1)
  • AAA: use #355f3a as the text (7.37:1)
  • AA: or shift the background to #242424 (4.61:1)
Aaon black
6.24:1passpassfail
  • AAA: use #5ea667 as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #559b5e as the background.

Brands using this color

mcpConnect your agent — build around #559b5e
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 #559b5e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/559b5e-a2bea9-ac4edf-1f2d27-ecf1e9?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