Color

#519140

#519140
hex#519140
rgbrgb(81, 145, 64)
hslhsl(107, 39%, 41%)
oklchoklch(0.595 0.132 139.4)
Closest name: Fern (#548d44)Relative luminance 0.2237

Colors that go with #519140

Charcoal, Royal 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 →

#804091

#7a9140 · #409157

#405191 · #914051

Split-complementary

Open in tool →

#574091 · #91407a

#407a91 · #804091 · #915740

Contrast

#519140 as textRatioAAAA largeAAAFix
Aaon white
3.84:1failpassfail
  • AA: use #49833a as the text (4.57:1)
  • AAA: use #38632c as the text (7.03:1)
  • AA: or shift the background to #1a1a1a (4.54:1)
Aaon black
5.47:1passpassfail
  • AAA: use #5da749 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #519140 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 #519140
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 #519140 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/519140-a5bea2-7a4edf-1f2d22-eff1e9?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