Color

#505491

#505491
hex#505491
rgbrgb(80, 84, 145)
hslhsl(236, 29%, 44%)
oklchoklch(0.471 0.098 279.1)
Closest name: Dusk (#4e5481)Relative luminance 0.1009

Colors that go with #505491

Charcoal, Steel Blue 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 #505491

Tints & shades

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

Harmonies

Complementary

Open in tool →

#918c50

#507591 · #6c5091

#915054 · #549150

Split-complementary

Open in tool →

#916c50 · #759150

#915075 · #918c50 · #50916c

Contrast

#505491 as textRatioAAAA largeAAAFix
Aaon white
6.96:1passpassfail
  • AAA: use #4e528d as the text (7.2:1)
Aaon black
3.02:1failpassfail
  • AA: use #6b6fae as the text (4.51:1)
  • AAA: use #8f93c1 as the text (7.11:1)
  • AA: or shift the background to #d1d1d1 (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 #505491 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 #505491
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 #505491 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/505491-9e9cc4-df8f4e-241f2d-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