Color

#509b92

#509b92
hex#509b92
rgbrgb(80, 155, 146)
hslhsl(173, 32%, 46%)
oklchoklch(0.639 0.076 185.3)
Closest name: cadetblue (#5f9ea0)Relative luminance 0.2722

Colors that go with #509b92

Charcoal, Copper and Blush Pink 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 #509b92

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9b5059

#509b6d · #507e9b

#92509b · #9b9250

Split-complementary

Open in tool →

#9b507e · #9b6d50

#6d509b · #9b5059 · #7e9b50

Contrast

#509b92 as textRatioAAAA largeAAAFix
Aaon white
3.26:1failpassfail
  • AA: use #428079 as the text (4.57:1)
  • AAA: use #315e59 as the text (7.3:1)
  • AA: or shift the background to #262626 (4.64:1)
Aaon black
6.44:1passpassfail
  • AAA: use #55a59c as the text (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #509b92 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 #509b92
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 #509b92 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/509b92-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