Color

#508186

#508186
hex#508186
rgbrgb(80, 129, 134)
hslhsl(186, 25%, 42%)
oklchoklch(0.57 0.053 204)
Closest name: Arctic (#648589)Relative luminance 0.1913

Colors that go with #508186

Charcoal, Champagne 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 →

#865650

#508670 · #506686

#865081 · #818650

Split-complementary

Open in tool →

#865066 · #867050

#705086 · #865650 · #668650

Contrast

#508186 as textRatioAAAA largeAAAFix
Aaon white
4.35:1failpassfail
  • AA: use #4e7d83 as the text (4.58:1)
  • AAA: use #395c60 as the text (7.31:1)
  • AA: or shift the background to #0a0a0a (4.55:1)
Aaon black
4.83:1passpassfail
  • AAA: use #699fa5 as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #508186 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 #508186
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 #508186 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/508186-a2b8be-df4e86-1f262d-e9f1ee?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