Color

#509018

#509018
hex#509018
rgbrgb(80, 144, 24)
hslhsl(92, 71%, 33%)
oklchoklch(0.588 0.16 134.6)
Closest name: Asparagus Sultan (#6a8e22)Relative luminance 0.2172

Colors that go with #509018

Crimson, Royal Blue and Charcoal 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 →

#581890

#8c9018 · #18901c

#185090 · #901850

Split-complementary

Open in tool →

#1c1890 · #90188c

#188c90 · #581890 · #901c18

Contrast

#509018 as textRatioAAAA largeAAAFix
Aaon white
3.93:1failpassfail
  • AA: use #498316 as the text (4.62:1)
  • AAA: use #386411 as the text (7:1)
  • AA: or shift the background to #171717 (4.56:1)
Aaon black
5.34:1passpassfail
  • AAA: use #5faa1d 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 #509018 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 #509018
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 #509018 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/509018-acbea2-564edf-202d1f-f1f1e9?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