Color

#3ed5ef

#3ed5ef
hex#3ed5ef
rgbrgb(62, 213, 239)
hslhsl(189, 85%, 59%)
oklchoklch(0.807 0.127 211.9)
Closest name: mediumturquoise (#48d1cc)Relative luminance 0.5484

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ef583e

#3eefb1 · #3e7cef

#ef3ed5 · #d5ef3e

Split-complementary

Open in tool →

#ef3e7c · #efb13e

#b13eef · #ef583e · #7cef3e

Contrast

#3ed5ef as textRatioAAAA largeAAAFix
Aaon white
1.75:1failfailfail
  • AA: use #0c8297 as the text (4.51:1)
  • AAA: use #096271 as the text (7.01:1)
  • AA: or shift the background to #4f4f4f (4.67:1)
  • AAA: or shift the background to #333333 (7.2:1)
Aaon black
11.97:1passpasspassPasses 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 #3ed5ef 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

#3ed5ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3ed5ef
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 #3ed5ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ed5ef-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