Color

#3bf1eb

#3bf1eb
hex#3bf1eb
rgbrgb(59, 241, 235)
hslhsl(178, 87%, 59%)
oklchoklch(0.871 0.139 191.5)
Closest name: Frozen Boubble (#00eedd)Relative luminance 0.6984

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f13b42

#3bf190 · #3b9df1

#eb3bf1 · #f1eb3b

Split-complementary

Open in tool →

#f13b9d · #f1903b

#903bf1 · #f13b42 · #9df13b

Contrast

#3bf1eb as textRatioAAAA largeAAAFix
Aaon white
1.4:1failfailfail
  • AA: use #09817d as the text (4.72:1)
  • AAA: use #075f5c as the text (7.5:1)
  • AA: or shift the background to #5e5e5e (4.62:1)
  • AAA: or shift the background to #424242 (7.16:1)
Aaon black
14.97:1passpasspassPasses 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 #3bf1eb as the background.

Brands using this color

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

mcpConnect your agent — build around #3bf1eb
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 #3bf1eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bf1eb-a2bcbe-d45999-1f282d-e9f1ed?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