Color

#4dd3ea

#4dd3ea
hex#4dd3ea
rgbrgb(77, 211, 234)
hslhsl(189, 79%, 61%)
oklchoklch(0.804 0.118 211.1)
Closest name: mediumturquoise (#48d1cc)Relative luminance 0.5411

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ea654d

#4deab3 · #4d84ea

#ea4dd3 · #d3ea4d

Split-complementary

Open in tool →

#ea4d84 · #eab34d

#b34dea · #ea654d · #84ea4d

Contrast

#4dd3ea as textRatioAAAA largeAAAFix
Aaon white
1.78:1failfailfail
  • AA: use #117f92 as the text (4.69:1)
  • AAA: use #0d5f6e as the text (7.29:1)
  • AA: or shift the background to #4f4f4f (4.61:1)
  • AAA: or shift the background to #333333 (7.11:1)
Aaon black
11.82:1passpasspassPasses 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 #4dd3ea as the background.

Brands using this color

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

Fonts for this mood

#4dd3ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4dd3ea
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 #4dd3ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4dd3ea-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