Color

#509155

#509155
hex#509155
rgbrgb(80, 145, 85)
hslhsl(125, 29%, 44%)
oklchoklch(0.597 0.112 145.7)
Closest name: Fern (#548d44)Relative luminance 0.2261

Colors that go with #509155

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 →

#91508b

#6b9150 · #509176

#555091 · #915550

Split-complementary

Open in tool →

#765091 · #91506b

#506b91 · #91508b · #917650

Contrast

#509155 as textRatioAAAA largeAAAFix
Aaon white
3.8:1failpassfail
  • AA: use #47804b as the text (4.71:1)
  • AAA: use #355f38 as the text (7.38:1)
  • AA: or shift the background to #1a1a1a (4.58:1)
Aaon black
5.52:1passpassfail
  • AAA: use #5ea664 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 #509155 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 #509155
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 #509155 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/509155-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