Color

#509576

#509576
hex#509576
rgbrgb(80, 149, 118)
hslhsl(153, 30%, 45%)
oklchoklch(0.615 0.085 163.1)
Closest name: Illuminati Green (#419168)Relative luminance 0.2451

Colors that go with #509576

Charcoal, Copper and Medium Violet Red 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 #509576

Tints & shades

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

Harmonies

Complementary

Open in tool →

#95506f

#509554 · #509295

#765095 · #957650

Split-complementary

Open in tool →

#955092 · #955450

#545095 · #95506f · #929550

Contrast

#509576 as textRatioAAAA largeAAAFix
Aaon white
3.56:1failpassfail
  • AA: use #468166 as the text (4.57:1)
  • AAA: use #34604c as the text (7.18:1)
  • AA: or shift the background to #212121 (4.53:1)
Aaon black
5.9:1passpassfail
  • AAA: use #59a683 as the text (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #509576 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 #509576
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 #509576 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/509576-a2beb5-d459cc-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