Color

#565a6c

#565a6c
hex#565a6c
rgbrgb(86, 90, 108)
hslhsl(229, 11%, 38%)
oklchoklch(0.471 0.03 275.4)
Closest name: Blackwater (#545663)Relative luminance 0.1037

Colors that go with #565a6c

Blue, Cadet Blue and Champagne 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 →

#6c6856

#56656c · #5d566c

#6c565a · #5a6c56

Split-complementary

Open in tool →

#6c5d56 · #656c56

#6c5665 · #6c6856 · #566c5d

Contrast

#565a6c as textRatioAAAA largeAAAFix
Aaon white
6.83:1passpassfail
  • AAA: use #545869 as the text (7.05:1)
Aaon black
3.07:1failpassfail
  • AA: use #6f748b as the text (4.55:1)
  • AAA: use #9195a6 as the text (7.05:1)
  • AA: or shift the background to #d4d4d4 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #565a6c as the background.

Brands using this color

mcpConnect your agent — build around #565a6c
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 #565a6c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/565a6c-9c9fc4-df7e4e-231f2d-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