Color

#516690

#516690
hex#516690
rgbrgb(81, 102, 144)
hslhsl(220, 28%, 44%)
oklchoklch(0.511 0.072 263.6)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1327

Colors that go with #516690

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 →

#907b51

#518590 · #5b5190

#905166 · #669051

Split-complementary

Open in tool →

#905b51 · #859051

#905185 · #907b51 · #51905b

Contrast

#516690 as textRatioAAAA largeAAAFix
Aaon white
5.75:1passpassfail
  • AAA: use #46587c as the text (7.13:1)
Aaon black
3.65:1failpassfail
  • AA: use #5f76a5 as the text (4.62:1)
  • AAA: use #8698bb as the text (7.22:1)
  • AA: or shift the background to #e6e6e6 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #516690 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 #516690
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 #516690 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516690-9ca5c4-df694e-211f2d-e9f0f1?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