Color

#516685

#516685
hex#516685
rgbrgb(81, 102, 133)
hslhsl(216, 24%, 42%)
oklchoklch(0.506 0.056 258)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1295

Tints & shades

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

Harmonies

Complementary

Open in tool →

#857051

#518085 · #575185

#855166 · #668551

Split-complementary

Open in tool →

#855751 · #808551

#855180 · #857051 · #518557

Contrast

#516685 as textRatioAAAA largeAAAFix
Aaon white
5.85:1passpassfail
  • AAA: use #485a75 as the text (7.01:1)
Aaon black
3.59:1failpassfail
  • AA: use #5f779b as the text (4.6:1)
  • AAA: use #8497b3 as the text (7.06:1)
  • AA: or shift the background to #e3e3e3 (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 #516685 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 #516685
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 #516685 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/516685-9ca7c4-df5f4e-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