Color

#563b6d

#563b6d
hex#563b6d
rgbrgb(86, 59, 109)
hslhsl(272, 30%, 33%)
oklchoklch(0.405 0.087 307.8)
Closest name: Heartless (#623b70)Relative luminance 0.0621

Colors that go with #563b6d

Crimson, Denim and Midnight 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 →

#526d3b

#3d3b6d · #6d3b6c

#6d563b · #3b6d56

Split-complementary

Open in tool →

#6c6d3b · #3b6d3d

#6d3d3b · #526d3b · #3b6c6d

Contrast

#563b6d as textRatioAAAA largeAAAFix
Aaon white
9.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #8c67ad as the text (4.66:1)
  • AAA: use #a88bc1 as the text (7.13:1)
  • AA: or shift the background to #b5b5b5 (4.57:1)
  • AAA: or shift the background to #e0e0e0 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #563b6d 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 #563b6d
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 #563b6d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/563b6d-b69cc4-c5cb62-2d1f2d-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