Color

#519e5e

#519e5e
hex#519e5e
rgbrgb(81, 158, 94)
hslhsl(130, 32%, 47%)
oklchoklch(0.633 0.122 147.7)
Closest name: Golf Course (#5a9e4b)Relative luminance 0.2701

Colors that go with #519e5e

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 →

#9e5191

#6b9e51 · #519e85

#5e519e · #9e5e51

Split-complementary

Open in tool →

#85519e · #9e516b

#516b9e · #9e5191 · #9e8551

Contrast

#519e5e as textRatioAAAA largeAAAFix
Aaon white
3.28:1failpassfail
  • AA: use #44834e as the text (4.56:1)
  • AAA: use #32623a as the text (7.13:1)
  • AA: or shift the background to #262626 (4.61:1)
Aaon black
6.4:1passpassfail
  • AAA: use #57a864 as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #519e5e as the background.

Brands using this color

mcpConnect your agent — build around #519e5e
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 #519e5e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/519e5e-a2beaa-b14edf-1f2d28-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