Color

#509f96

#509f96
hex#509f96
rgbrgb(80, 159, 150)
hslhsl(173, 33%, 47%)
oklchoklch(0.65 0.079 185.7)
Closest name: cadetblue (#5f9ea0)Relative luminance 0.287

Colors that go with #509f96

Charcoal, Blush Pink 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.

Real palettes that use #509f96

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9f505a

#509f6f · #50819f

#96509f · #9f9650

Split-complementary

Open in tool →

#9f5081 · #9f6f50

#6f509f · #9f505a · #819f50

Contrast

#509f96 as textRatioAAAA largeAAAFix
Aaon white
3.12:1failpassfail
  • AA: use #418179 as the text (4.52:1)
  • AAA: use #305f59 as the text (7.22:1)
  • AA: or shift the background to #2b2b2b (4.54:1)
Aaon black
6.74:1passpassfail
  • AAA: use #52a399 as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #509f96 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 #509f96
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 #509f96 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/509f96-a2bebe-d459a3-1f292d-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