Color

#563b5e

#563b5e
hex#563b5e
rgbrgb(86, 59, 94)
hslhsl(286, 23%, 30%)
oklchoklch(0.397 0.067 318.3)
Closest name: Long Passionate Night (#5b365e)Relative luminance 0.0591

Colors that go with #563b5e

Sea Green, Copper and Crimson 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 →

#435e3b

#443b5e · #5e3b55

#5e563b · #3b5e56

Split-complementary

Open in tool →

#555e3b · #3b5e44

#5e443b · #435e3b · #3b555e

Contrast

#563b5e as textRatioAAAA largeAAAFix
Aaon white
9.62:1passpasspassPasses AAA — no fix needed.
Aaon black
2.18:1failfailfail
  • AA: use #91659f as the text (4.57:1)
  • AAA: use #ac8bb6 as the text (7.12:1)
  • AA: or shift the background to #b3b3b3 (4.59:1)
  • AAA: or shift the background to #dedede (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #563b5e as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#563b5e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #563b5e
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 #563b5e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/563b5e-bd9fc1-adcb62-2d1f2a-ece9f1?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