Color

#566e9f

#566e9f
hex#566e9f
rgbrgb(86, 110, 159)
hslhsl(220, 30%, 48%)
oklchoklch(0.54 0.082 263.9)
Closest name: Blue Triumph (#4376ab)Relative luminance 0.1563

Colors that go with #566e9f

Charcoal, Sea Green and Dark Olive Green 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 #566e9f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9f8756

#56939f · #62569f

#9f566e · #6e9f56

Split-complementary

Open in tool →

#9f6256 · #939f56

#9f5693 · #9f8756 · #569f62

Contrast

#566e9f as textRatioAAAA largeAAAFix
Aaon white
5.09:1passpassfail
  • AAA: use #44577e as the text (7.22:1)
Aaon black
4.13:1failpassfail
  • AA: use #5d76a8 as the text (4.62:1)
  • AAA: use #8497bd as the text (7.14:1)
  • AA: or shift the background to #f2f2f2 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #566e9f 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

mcpConnect your agent — build around #566e9f
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 #566e9f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/566e9f-9ca5c4-df694e-211f2d-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