Color

#3bf1df

#3bf1df
hex#3bf1df
rgbrgb(59, 241, 223)
hslhsl(174, 87%, 59%)
oklchoklch(0.867 0.142 184.8)
Closest name: Frozen Boubble (#00eedd)Relative luminance 0.6917

Colors that go with #3bf1df

Charcoal, Taupe and Light Coral 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.

Real palettes that use #3bf1df

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f13b4e

#3bf184 · #3ba9f1

#df3bf1 · #f1df3b

Split-complementary

Open in tool →

#f13ba9 · #f1843b

#843bf1 · #f13b4e · #a9f13b

Contrast

#3bf1df as textRatioAAAA largeAAAFix
Aaon white
1.42:1failfailfail
  • AA: use #098175 as the text (4.76:1)
  • AAA: use #07645b as the text (7.04:1)
  • AA: or shift the background to #5e5e5e (4.58:1)
  • AAA: or shift the background to #424242 (7.1:1)
Aaon black
14.83:1passpasspassPasses 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 #3bf1df 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 #3bf1df
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 #3bf1df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bf1df-a2bebe-d459a1-1f292d-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