Color

#516e90

#516e90
hex#516e90
rgbrgb(81, 110, 144)
hslhsl(212, 28%, 44%)
oklchoklch(0.53 0.064 252.9)
Closest name: Beach View (#4f7694)Relative luminance 0.1491

Colors that go with #516e90

Charcoal, Champagne 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.

Real palettes that use #516e90

Tints & shades

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

Harmonies

Complementary

Open in tool →

#907251

#518e90 · #535190

#90516e · #6e9051

Split-complementary

Open in tool →

#905351 · #8e9051

#90518e · #907251 · #519053

Contrast

#516e90 as textRatioAAAA largeAAAFix
Aaon white
5.27:1passpassfail
  • AAA: use #425a76 as the text (7.1:1)
Aaon black
3.98:1failpassfail
  • AA: use #58789d as the text (4.59:1)
  • AAA: use #809ab7 as the text (7.22:1)
  • AA: or shift the background to #ededed (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #516e90 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 #516e90
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 #516e90 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516e90-9caac4-df564e-1f202d-e9f1f1?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