Color

#563371

#563371
hex#563371
rgbrgb(86, 51, 113)
hslhsl(274, 38%, 32%)
oklchoklch(0.393 0.107 308.3)
Closest name: Imperial Purple (#5b3167)Relative luminance 0.0554

Colors that go with #563371

Charcoal, Crimson and Denim 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 →

#4d7133

#373371 · #71336c

#715633 · #337156

Split-complementary

Open in tool →

#6c7133 · #337137

#713733 · #4d7133 · #336c71

Contrast

#563371 as textRatioAAAA largeAAAFix
Aaon white
9.96:1passpasspassPasses AAA — no fix needed.
Aaon black
2.11:1failfailfail
  • AA: use #9261b8 as the text (4.62:1)
  • AAA: use #ad87c9 as the text (7.09:1)
  • AA: or shift the background to #b0b0b0 (4.59:1)
  • AAA: or shift the background to #d9d9d9 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #563371 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#563371 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #563371
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 #563371 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/563371-b79cc4-c2cb62-2d1f2d-eae9f1?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