Color

#505b95

#505b95
hex#505b95
rgbrgb(80, 91, 149)
hslhsl(230, 30%, 45%)
oklchoklch(0.489 0.094 274.3)
Closest name: Dusk (#4e5481)Relative luminance 0.1136

Colors that go with #505b95

Charcoal, Sea Green and Amber 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.

Real palettes that use #505b95

Tints & shades

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

Harmonies

Complementary

Open in tool →

#958a50

#507e95 · #675095

#95505c · #5c9550

Split-complementary

Open in tool →

#956750 · #7e9550

#95507e · #958a50 · #509567

Contrast

#505b95 as textRatioAAAA largeAAAFix
Aaon white
6.42:1passpassfail
  • AAA: use #495488 as the text (7.22:1)
Aaon black
3.27:1failpassfail
  • AA: use #6772ad as the text (4.59:1)
  • AAA: use #8b94c1 as the text (7.1:1)
  • AA: or shift the background to #d9d9d9 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #505b95 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 #505b95
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 #505b95 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/505b95-9c9ec4-df814e-231f2d-e9eef1?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