Color

#3bb2bf

#3bb2bf
hex#3bb2bf
rgbrgb(59, 178, 191)
hslhsl(186, 53%, 49%)
oklchoklch(0.704 0.104 205.6)
Closest name: Blue Bobbin (#52b4ca)Relative luminance 0.3653

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf483b

#3bbf8a · #3b70bf

#bf3bb2 · #b2bf3b

Split-complementary

Open in tool →

#bf3b70 · #bf8a3b

#8a3bbf · #bf483b · #70bf3b

Contrast

#3bb2bf as textRatioAAAA largeAAAFix
Aaon white
2.53:1failfailfail
  • AA: use #2a7f89 as the text (4.67:1)
  • AAA: use #1f5e65 as the text (7.38:1)
  • AA: or shift the background to #383838 (4.64:1)
  • AAA: or shift the background to #171717 (7.09:1)
Aaon black
8.31:1passpasspassPasses 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 #3bb2bf 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

#3bb2bf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3bb2bf
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 #3bb2bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bb2bf-a2b8be-df4e86-1f262d-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