Color

#516394

#516394
hex#516394
rgbrgb(81, 99, 148)
hslhsl(224, 29%, 45%)
oklchoklch(0.506 0.081 268.1)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1281

Colors that go with #516394

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 →

#948251

#518494 · #615194

#945163 · #639451

Split-complementary

Open in tool →

#946151 · #849451

#945184 · #948251 · #519461

Contrast

#516394 as textRatioAAAA largeAAAFix
Aaon white
5.9:1passpassfail
  • AAA: use #475680 as the text (7.21:1)
Aaon black
3.56:1failpassfail
  • AA: use #6174a8 as the text (4.57:1)
  • AAA: use #8997be as the text (7.23:1)
  • AA: or shift the background to #e3e3e3 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #516394 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 #516394
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 #516394 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516394-9ca2c4-df724e-221f2d-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