Color

#5b9580

#5b9580
hex#5b9580
rgbrgb(91, 149, 128)
hslhsl(158, 24%, 47%)
oklchoklch(0.624 0.069 169)
Closest name: Highlands (#449084)Relative luminance 0.2528

Colors that go with #5b9580

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 #5b9580

Tints & shades

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

Harmonies

Complementary

Open in tool →

#955b70

#5b9563 · #5b8d95

#805b95 · #95805b

Split-complementary

Open in tool →

#955b8d · #95635b

#635b95 · #955b70 · #8d955b

Contrast

#5b9580 as textRatioAAAA largeAAAFix
Aaon white
3.47:1failpassfail
  • AA: use #4e7e6d as the text (4.64:1)
  • AAA: use #3a5f51 as the text (7.15:1)
  • AA: or shift the background to #212121 (4.64:1)
Aaon black
6.06:1passpassfail
  • AAA: use #67a28c as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b9580 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 #5b9580
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 #5b9580 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b9580-a2beb7-d459c2-1f2c2d-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