Color

#516790

#516790
hex#516790
rgbrgb(81, 103, 144)
hslhsl(219, 28%, 44%)
oklchoklch(0.513 0.071 262.4)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1346

Colors that go with #516790

Charcoal, Sea Green and Sienna 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 →

#907a51

#518690 · #5a5190

#905167 · #679051

Split-complementary

Open in tool →

#905a51 · #869051

#905186 · #907a51 · #51905a

Contrast

#516790 as textRatioAAAA largeAAAFix
Aaon white
5.69:1passpassfail
  • AAA: use #46597c as the text (7.05:1)
Aaon black
3.69:1failpassfail
  • AA: use #5c75a3 as the text (4.53:1)
  • AAA: use #8396b9 as the text (7.03:1)
  • AA: or shift the background to #e6e6e6 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #516790 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 #516790
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 #516790 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516790-9ca5c4-df664e-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