Color

#566576

#566576
hex#566576
rgbrgb(86, 101, 118)
hslhsl(212, 16%, 40%)
oklchoklch(0.501 0.033 251.7)
Closest name: Concrete Landscape (#5c606e)Relative luminance 0.1259

Colors that go with #566576

Charcoal, Sienna and Amber 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 →

#766756

#567576 · #575676

#765665 · #657656

Split-complementary

Open in tool →

#765756 · #757656

#765675 · #766756 · #567657

Contrast

#566576 as textRatioAAAA largeAAAFix
Aaon white
5.97:1passpassfail
  • AAA: use #4b5868 as the text (7.25:1)
Aaon black
3.52:1failpassfail
  • AA: use #65778b as the text (4.56:1)
  • AAA: use #8998a9 as the text (7.13:1)
  • AA: or shift the background to #e0e0e0 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #566576 as the background.

Brands using this color

mcpConnect your agent — build around #566576
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 #566576 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/566576-9caac4-df564e-1f202d-e9f1f1?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