Color

#516d9a

#516d9a
hex#516d9a
rgbrgb(81, 109, 154)
hslhsl(217, 31%, 46%)
oklchoklch(0.532 0.079 259.6)
Closest name: Beach View (#4f7694)Relative luminance 0.1502

Colors that go with #516d9a

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 →

#9a7e51

#51919a · #59519a

#9a516d · #6d9a51

Split-complementary

Open in tool →

#9a5951 · #919a51

#9a5191 · #9a7e51 · #519a59

Contrast

#516d9a as textRatioAAAA largeAAAFix
Aaon white
5.24:1passpassfail
  • AAA: use #41587c as the text (7.21:1)
Aaon black
4:1failpassfail
  • AA: use #5876a7 as the text (4.56:1)
  • AAA: use #8097bc as the text (7.07:1)
  • AA: or shift the background to #f0f0f0 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #516d9a 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 #516d9a
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 #516d9a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516d9a-9ca7c4-df624e-201f2d-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