Color

#519481

#519481
hex#519481
rgbrgb(81, 148, 129)
hslhsl(163, 29%, 45%)
oklchoklch(0.616 0.075 173.3)
Closest name: Highlands (#449084)Relative luminance 0.2451

Colors that go with #519481

Charcoal, Copper and Crimson 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 #519481

Tints & shades

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

Harmonies

Complementary

Open in tool →

#945164

#519460 · #518694

#815194 · #948151

Split-complementary

Open in tool →

#945186 · #946051

#605194 · #945164 · #869451

Contrast

#519481 as textRatioAAAA largeAAAFix
Aaon white
3.56:1failpassfail
  • AA: use #478070 as the text (4.58:1)
  • AAA: use #355f53 as the text (7.21:1)
  • AA: or shift the background to #212121 (4.53:1)
Aaon black
5.9:1passpassfail
  • AAA: use #5ba490 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #519481 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 #519481
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 #519481 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/519481-a2beb9-d459b7-1f2b2d-e9f1eb?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