Color

#559eaa

#559eaa
hex#559eaa
rgbrgb(85, 158, 170)
hslhsl(188, 33%, 50%)
oklchoklch(0.657 0.075 209.3)
Closest name: Atlas Cedar (#5ca0a7)Relative luminance 0.2929

Colors that go with #559eaa

Charcoal, Terracotta and Blush Pink 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 #559eaa

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aa6155

#55aa8b · #5574aa

#aa559e · #9eaa55

Split-complementary

Open in tool →

#aa5574 · #aa8b55

#8b55aa · #aa6155 · #74aa55

Contrast

#559eaa as textRatioAAAA largeAAAFix
Aaon white
3.06:1failpassfail
  • AA: use #447f88 as the text (4.53:1)
  • AAA: use #335f66 as the text (7.07:1)
  • AA: or shift the background to #2b2b2b (4.62:1)
Aaon black
6.86:1passpassfail
  • AAA: use #59a0ab as the text (7.04:1)

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

Brands using this color

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

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

tool url/palettes/new/559eaa-a2b7be-df4e81-1f252d-e9f1ee?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