Color

#566476

#566476
hex#566476
rgbrgb(86, 100, 118)
hslhsl(214, 16%, 40%)
oklchoklch(0.498 0.034 254.8)
Closest name: Concrete Landscape (#5c606e)Relative luminance 0.124

Colors that go with #566476

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 →

#766856

#567476 · #585676

#765664 · #647656

Split-complementary

Open in tool →

#765856 · #747656

#765674 · #766856 · #567658

Contrast

#566476 as textRatioAAAA largeAAAFix
Aaon white
6.03:1passpassfail
  • AAA: use #4d5a6a as the text (7.03:1)
Aaon black
3.48:1failpassfail
  • AA: use #67788e as the text (4.65:1)
  • AAA: use #8997a9 as the text (7.06:1)
  • AA: or shift the background to #e0e0e0 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #566476 as the background.

Brands using this color

mcpConnect your agent — build around #566476
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 #566476 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/566476-9ca9c4-df5a4e-1f1f2d-e9f0f1?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