Color

#509b7d

#509b7d
hex#509b7d
rgbrgb(80, 155, 125)
hslhsl(156, 32%, 46%)
oklchoklch(0.632 0.089 165.5)
Closest name: Bulma Hair (#359e6b)Relative luminance 0.2663

Colors that go with #509b7d

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 #509b7d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9b506e

#509b57 · #50939b

#7d509b · #9b7d50

Split-complementary

Open in tool →

#9b5093 · #9b5750

#57509b · #9b506e · #939b50

Contrast

#509b7d as textRatioAAAA largeAAAFix
Aaon white
3.32:1failpassfail
  • AA: use #428067 as the text (4.65:1)
  • AAA: use #32624f as the text (7.01:1)
  • AA: or shift the background to #262626 (4.56:1)
Aaon black
6.33:1passpassfail
  • AAA: use #55a585 as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #509b7d 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 #509b7d
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 #509b7d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/509b7d-a2beb6-d459c6-1f2d2d-e9f1ea?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