Color

#3ec3e5

#3ec3e5
hex#3ec3e5
rgbrgb(62, 195, 229)
hslhsl(192, 76%, 57%)
oklchoklch(0.76 0.121 218.9)
Closest name: Blue Bikini (#00bbee)Relative luminance 0.4571

Colors that go with #3ec3e5

Charcoal, Dark Salmon 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 →

#e55f3e

#3ee5b3 · #3e70e5

#e53ec3 · #c3e53e

Split-complementary

Open in tool →

#e53e70 · #e5b33e

#b33ee5 · #e55f3e · #70e53e

Contrast

#3ec3e5 as textRatioAAAA largeAAAFix
Aaon white
2.07:1failfailfail
  • AA: use #157e99 as the text (4.69:1)
  • AAA: use #106175 as the text (7.03:1)
  • AA: or shift the background to #454545 (4.63:1)
  • AAA: or shift the background to #292929 (7.03:1)
Aaon black
10.14:1passpasspassPasses 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 #3ec3e5 as the background.

Brands using this color

Fonts for this mood

#3ec3e5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3ec3e5
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 #3ec3e5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ec3e5-a2b5be-df4e77-1f242d-e9f1ef?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