Color

#516594

#516594
hex#516594
rgbrgb(81, 101, 148)
hslhsl(222, 29%, 45%)
oklchoklch(0.511 0.079 266.1)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1319

Colors that go with #516594

Charcoal, Sea Green and Dark Olive Green 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 →

#948051

#518794 · #5f5194

#945165 · #659451

Split-complementary

Open in tool →

#945f51 · #879451

#945187 · #948051 · #51945f

Contrast

#516594 as textRatioAAAA largeAAAFix
Aaon white
5.77:1passpassfail
  • AAA: use #475880 as the text (7.06:1)
Aaon black
3.64:1failpassfail
  • AA: use #5e74a6 as the text (4.52:1)
  • AAA: use #8596bc as the text (7.09:1)
  • AA: or shift the background to #e6e6e6 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #516594 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #516594
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 #516594 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516594-9ca3c4-df6e4e-211f2d-e9eff1?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