Color

#509556

#509556
hex#509556
rgbrgb(80, 149, 86)
hslhsl(125, 30%, 45%)
oklchoklch(0.608 0.117 145.8)
Closest name: Eucalyptus (#329760)Relative luminance 0.2387

Colors that go with #509556

Charcoal, Blue 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#95508f

#6d9550 · #509578

#565095 · #955650

Split-complementary

Open in tool →

#785095 · #95506d

#506d95 · #95508f · #957850

Contrast

#509556 as textRatioAAAA largeAAAFix
Aaon white
3.64:1failpassfail
  • AA: use #46814b as the text (4.66:1)
  • AAA: use #346037 as the text (7.31:1)
  • AA: or shift the background to #1f1f1f (4.53:1)
Aaon black
5.77:1passpassfail
  • AAA: use #59a660 as the text (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #509556 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 #509556
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 #509556 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/509556-a2bea7-a54edf-1f2d26-ecf1e9?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