Color

#55d0dd

#55d0dd
hex#55d0dd
rgbrgb(85, 208, 221)
hslhsl(186, 67%, 60%)
oklchoklch(0.794 0.109 204.9)
Closest name: mediumturquoise (#48d1cc)Relative luminance 0.5226

Colors that go with #55d0dd

Charcoal, Light Coral and Crimson 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 →

#dd6255

#55dda7 · #558bdd

#dd55d0 · #d0dd55

Split-complementary

Open in tool →

#dd558b · #dda755

#a755dd · #dd6255 · #8bdd55

Contrast

#55d0dd as textRatioAAAA largeAAAFix
Aaon white
1.83:1failfailfail
  • AA: use #1c818d as the text (4.59:1)
  • AAA: use #15626a as the text (7.03:1)
  • AA: or shift the background to #4d4d4d (4.61:1)
  • AAA: or shift the background to #303030 (7.2:1)
Aaon black
11.45:1passpasspassPasses 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 #55d0dd as the background.

Brands using this color

Fonts for this mood

#55d0dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #55d0dd
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 #55d0dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/55d0dd-a2b8be-df4e86-1f262d-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