Color

#559daa

#559daa
hex#559daa
rgbrgb(85, 157, 170)
hslhsl(189, 33%, 50%)
oklchoklch(0.654 0.075 210.6)
Closest name: Atlas Cedar (#5ca0a7)Relative luminance 0.2895

Colors that go with #559daa

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 #559daa

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aa6255

#55aa8c · #5573aa

#aa559d · #9daa55

Split-complementary

Open in tool →

#aa5573 · #aa8c55

#8c55aa · #aa6255 · #73aa55

Contrast

#559daa as textRatioAAAA largeAAAFix
Aaon white
3.09:1failpassfail
  • AA: use #447e88 as the text (4.58:1)
  • AAA: use #335e66 as the text (7.16:1)
  • AA: or shift the background to #2b2b2b (4.58:1)
Aaon black
6.79:1passpassfail
  • AAA: use #5ca1ad as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #559daa 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 #559daa
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 #559daa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/559daa-a2b7be-df4e7e-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