Color

#559b69

#559b69
hex#559b69
rgbrgb(85, 155, 105)
hslhsl(137, 29%, 47%)
oklchoklch(0.63 0.104 151.7)
Closest name: Bulma Hair (#359e6b)Relative luminance 0.2639

Colors that go with #559b69

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 →

#9b5587

#649b55 · #559b8c

#69559b · #9b6955

Split-complementary

Open in tool →

#8c559b · #9b5564

#55649b · #9b5587 · #9b8c55

Contrast

#559b69 as textRatioAAAA largeAAAFix
Aaon white
3.34:1failpassfail
  • AA: use #478057 as the text (4.67:1)
  • AAA: use #355f41 as the text (7.33:1)
  • AA: or shift the background to #262626 (4.52:1)
Aaon black
6.28:1passpassfail
  • AAA: use #5ea672 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #559b69 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 #559b69
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 #559b69 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/559b69-a2bead-bb59d4-1f2d29-ebf1e9?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