Color

#506386

#506386
hex#506386
rgbrgb(80, 99, 134)
hslhsl(219, 25%, 42%)
oklchoklch(0.499 0.061 262.3)
Closest name: Admiral Blue (#50647f)Relative luminance 0.1235

Colors that go with #506386

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 →

#867350

#507e86 · #585086

#865063 · #638650

Split-complementary

Open in tool →

#865850 · #7e8650

#86507e · #867350 · #508658

Contrast

#506386 as textRatioAAAA largeAAAFix
Aaon white
6.05:1passpassfail
  • AAA: use #475776 as the text (7.26:1)
Aaon black
3.47:1failpassfail
  • AA: use #60769f as the text (4.59:1)
  • AAA: use #8697b6 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 #506386 as the background.

Brands using this color

mcpConnect your agent — build around #506386
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 #506386 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/506386-9ca5c4-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