Color

#516385

#516385
hex#516385
rgbrgb(81, 99, 133)
hslhsl(219, 24%, 42%)
oklchoklch(0.499 0.059 262.8)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1237

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#857351

#517d85 · #595185

#855163 · #638551

Split-complementary

Open in tool →

#855951 · #7d8551

#85517d · #857351 · #518559

Contrast

#516385 as textRatioAAAA largeAAAFix
Aaon white
6.05:1passpassfail
  • AAA: use #485875 as the text (7.17:1)
Aaon black
3.47:1failpassfail
  • AA: use #61769e as the text (4.59:1)
  • AAA: use #8797b5 as the text (7.12:1)
  • AA: or shift the background to #e0e0e0 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #516385 as the background.

Brands using this color

mcpConnect your agent — build around #516385
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #516385 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516385-9ca5c4-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