Color

#509595

#509595
hex#509595
rgbrgb(80, 149, 149)
hslhsl(180, 30%, 45%)
oklchoklch(0.625 0.07 195.5)
Closest name: Highlands (#449084)Relative luminance 0.2537

Colors that go with #509595

Charcoal, Copper and Crimson 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 #509595

Tints & shades

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

Harmonies

Complementary

Open in tool →

#955050

#509573 · #507395

#955095 · #959550

Split-complementary

Open in tool →

#955073 · #957350

#735095 · #955050 · #739550

Contrast

#509595 as textRatioAAAA largeAAAFix
Aaon white
3.46:1failpassfail
  • AA: use #447e7e as the text (4.63:1)
  • AAA: use #346060 as the text (7.03:1)
  • AA: or shift the background to #212121 (4.66:1)
Aaon black
6.07:1passpassfail
  • AAA: use #57a2a2 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 #509595 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 #509595
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 #509595 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/509595-a2bbbe-d45994-1f272d-e9f1ed?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