Color

#559dc3

#559dc3
hex#559dc3
rgbrgb(85, 157, 195)
hslhsl(201, 48%, 55%)
oklchoklch(0.664 0.092 233.5)
Closest name: Canadian Tuxedo (#579aca)Relative luminance 0.2999

Colors that go with #559dc3

Charcoal, Peru 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.

Real palettes that use #559dc3

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c37c55

#55c3b3 · #5566c3

#c3559d · #9dc355

Split-complementary

Open in tool →

#c35566 · #c3b355

#b355c3 · #c37c55 · #66c355

Contrast

#559dc3 as textRatioAAAA largeAAAFix
Aaon white
3:1failpassfail
  • AA: use #397da2 as the text (4.54:1)
  • AAA: use #2a5d79 as the text (7.14:1)
  • AA: or shift the background to #2e2e2e (4.52:1)
Aaon black
7:1passpassfail
  • AAA: use #599fc5 as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #559dc3 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

#559dc3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #559dc3
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 #559dc3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/559dc3-9cb1c4-df4e62-1f222d-e9f1f0?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