Color

#558b79

#558b79
hex#558b79
rgbrgb(85, 139, 121)
hslhsl(160, 24%, 44%)
oklchoklch(0.594 0.064 170.8)
Closest name: Highlands (#449084)Relative luminance 0.2178

Colors that go with #558b79

Charcoal, Copper and Blush Pink 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 #558b79

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8b5567

#558b5e · #55828b

#79558b · #8b7955

Split-complementary

Open in tool →

#8b5582 · #8b5e55

#5e558b · #8b5567 · #828b55

Contrast

#558b79 as textRatioAAAA largeAAAFix
Aaon white
3.92:1failpassfail
  • AA: use #4e7e6e as the text (4.63:1)
  • AAA: use #3a5f53 as the text (7.14:1)
  • AA: or shift the background to #171717 (4.57:1)
Aaon black
5.36:1passpassfail
  • AAA: use #67a28e as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #558b79 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 #558b79
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 #558b79 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/558b79-a2beb8-d459be-1f2c2d-e9f1eb?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