Color

#508b81

#508b81
hex#508b81
rgbrgb(80, 139, 129)
hslhsl(170, 27%, 43%)
oklchoklch(0.593 0.064 182)
Closest name: Highlands (#449084)Relative luminance 0.2176

Colors that go with #508b81

Charcoal, Copper and Champagne 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 #508b81

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8b505a

#508b64 · #50788b

#81508b · #8b8150

Split-complementary

Open in tool →

#8b5078 · #8b6450

#64508b · #8b505a · #788b50

Contrast

#508b81 as textRatioAAAA largeAAAFix
Aaon white
3.92:1failpassfail
  • AA: use #497e75 as the text (4.64:1)
  • AAA: use #365e57 as the text (7.25:1)
  • AA: or shift the background to #171717 (4.57:1)
Aaon black
5.35:1passpassfail
  • AAA: use #5da296 as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #508b81 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #508b81
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 #508b81 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/508b81-a2bebd-d459a9-1f292d-e9f1ec?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