Color

#3bf1dc

#3bf1dc
hex#3bf1dc
rgbrgb(59, 241, 220)
hslhsl(173, 87%, 59%)
oklchoklch(0.866 0.143 183.2)
Closest name: Frozen Boubble (#00eedd)Relative luminance 0.6901

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f13b51

#3bf181 · #3bacf1

#dc3bf1 · #f1dc3b

Split-complementary

Open in tool →

#f13bac · #f1813b

#813bf1 · #f13b51 · #acf13b

Contrast

#3bf1dc as textRatioAAAA largeAAAFix
Aaon white
1.42:1failfailfail
  • AA: use #098173 as the text (4.77:1)
  • AAA: use #076459 as the text (7.06:1)
  • AA: or shift the background to #5e5e5e (4.57:1)
  • AAA: or shift the background to #424242 (7.08:1)
Aaon black
14.8:1passpasspassPasses 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 #3bf1dc 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 #3bf1dc
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 #3bf1dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bf1dc-a2bebe-d459a3-1f292d-e9f1ec?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