Color

#4bd5dd

#4bd5dd
hex#4bd5dd
rgbrgb(75, 213, 221)
hslhsl(183, 68%, 58%)
oklchoklch(0.803 0.117 200.6)
Closest name: mediumturquoise (#48d1cc)Relative luminance 0.543

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dd524b

#4bdd9b · #4b8ddd

#dd4bd5 · #d5dd4b

Split-complementary

Open in tool →

#dd4b8d · #dd9b4b

#9b4bdd · #dd524b · #8ddd4b

Contrast

#4bd5dd as textRatioAAAA largeAAAFix
Aaon white
1.77:1failfailfail
  • AA: use #197f85 as the text (4.76:1)
  • AAA: use #135f63 as the text (7.38:1)
  • AA: or shift the background to #4f4f4f (4.63:1)
  • AAA: or shift the background to #333333 (7.14:1)
Aaon black
11.86:1passpasspassPasses 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 #4bd5dd as the background.

Brands using this color

Fonts for this mood

#4bd5dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4bd5dd
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #4bd5dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4bd5dd-a2b9be-d4598e-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