Color

#55a3aa

#55a3aa
hex#55a3aa
rgbrgb(85, 163, 170)
hslhsl(185, 33%, 50%)
oklchoklch(0.669 0.077 203.1)
Closest name: Atlas Cedar (#5ca0a7)Relative luminance 0.3103

Colors that go with #55a3aa

Charcoal, Terracotta and Burlywood 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 #55a3aa

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aa5c55

#55aa87 · #5578aa

#aa55a3 · #a3aa55

Split-complementary

Open in tool →

#aa5578 · #aa8755

#8755aa · #aa5c55 · #78aa55

Contrast

#55a3aa as textRatioAAAA largeAAAFix
Aaon white
2.91:1failfailfail
  • AA: use #437f84 as the text (4.56:1)
  • AAA: use #325e62 as the text (7.21:1)
  • AA: or shift the background to #303030 (4.53:1)
  • AAA: or shift the background to #030303 (7.08:1)
Aaon black
7.21:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #55a3aa 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 #55a3aa
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 #55a3aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/55a3aa-a2b8be-df4e88-1f262d-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