Color

#584b95

#584b95
hex#584b95
rgbrgb(88, 75, 149)
hslhsl(251, 33%, 44%)
oklchoklch(0.462 0.117 289.1)
Closest name: Lords of the Night (#664488)Relative luminance 0.0928

Colors that go with #584b95

Charcoal, Sea Green and Steel Blue 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 →

#88954b

#4b6395 · #7e4b95

#95594b · #4b9559

Split-complementary

Open in tool →

#957e4b · #63954b

#954b63 · #88954b · #4b957e

Contrast

#584b95 as textRatioAAAA largeAAAFix
Aaon white
7.35:1passpasspassPasses AAA — no fix needed.
Aaon black
2.86:1failfailfail
  • AA: use #776ab4 as the text (4.51:1)
  • AAA: use #998fc7 as the text (7.11:1)
  • AA: or shift the background to #cccccc (4.58:1)
  • AAA: or shift the background to #fafafa (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #584b95 as the background.

Brands using this color

mcpConnect your agent — build around #584b95
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 #584b95 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/584b95-a89cc4-dfb34e-281f2d-e9ecf1?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