Color

#565b76

#565b76
hex#565b76
rgbrgb(86, 91, 118)
hslhsl(231, 16%, 40%)
oklchoklch(0.477 0.044 276.4)
Closest name: Deep Indigo (#4c567a)Relative luminance 0.1077

Colors that go with #565b76

Charcoal, Sea Green and Steel 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.

Real palettes that use #565b76

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#767156

#566b76 · #615676

#76565b · #5b7656

Split-complementary

Open in tool →

#766156 · #6b7656

#76566b · #767156 · #567661

Contrast

#565b76 as textRatioAAAA largeAAAFix
Aaon white
6.66:1passpassfail
  • AAA: use #515670 as the text (7.2:1)
Aaon black
3.15:1failpassfail
  • AA: use #6e7496 as the text (4.6:1)
  • AAA: use #9296b0 as the text (7.21:1)
  • AA: or shift the background to #d6d6d6 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #565b76 as the background.

Brands using this color

mcpConnect your agent — build around #565b76
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 #565b76 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/565b76-9c9ec4-df834e-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