Color

#509190

#509190
hex#509190
rgbrgb(80, 145, 144)
hslhsl(179, 29%, 44%)
oklchoklch(0.613 0.067 194.3)
Closest name: Highlands (#449084)Relative luminance 0.2397

Colors that go with #509190

Charcoal, Copper and Cobalt Blue 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 #509190

Tints & shades

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

Harmonies

Complementary

Open in tool →

#915051

#50916f · #507191

#905091 · #919050

Split-complementary

Open in tool →

#915071 · #916f50

#6f5091 · #915051 · #719150

Contrast

#509190 as textRatioAAAA largeAAAFix
Aaon white
3.62:1failpassfail
  • AA: use #47807f as the text (4.5:1)
  • AAA: use #355f5f as the text (7.11:1)
  • AA: or shift the background to #1f1f1f (4.55:1)
Aaon black
5.79:1passpassfail
  • AAA: use #59a1a0 as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #509190 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 #509190
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 #509190 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/509190-a2bbbe-d45996-1f272d-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