Color

#5666ae

#5666ae
hex#5666ae
rgbrgb(86, 102, 174)
hslhsl(229, 35%, 51%)
oklchoklch(0.531 0.115 272.5)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1454

Colors that go with #5666ae

Charcoal, Sea Green 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 →

#ae9e56

#5692ae · #7256ae

#ae5666 · #66ae56

Split-complementary

Open in tool →

#ae7256 · #92ae56

#ae5692 · #ae9e56 · #56ae72

Contrast

#5666ae as textRatioAAAA largeAAAFix
Aaon white
5.37:1passpassfail
  • AAA: use #475594 as the text (7.01:1)
Aaon black
3.91:1failpassfail
  • AA: use #6473b4 as the text (4.65:1)
  • AAA: use #8a95c7 as the text (7.2:1)
  • AA: or shift the background to #ebebeb (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5666ae as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#5666ae reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5666ae
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 #5666ae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5666ae-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