Color

#3bb6ce

#3bb6ce
hex#3bb6ce
rgbrgb(59, 182, 206)
hslhsl(190, 60%, 52%)
oklchoklch(0.719 0.11 213.6)
Closest name: Blue Bobbin (#52b4ca)Relative luminance 0.3884

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ce543b

#3bce9d · #3b6cce

#ce3bb6 · #b6ce3b

Split-complementary

Open in tool →

#ce3b6c · #ce9d3b

#9d3bce · #ce543b · #6cce3b

Contrast

#3bb6ce as textRatioAAAA largeAAAFix
Aaon white
2.39:1failfailfail
  • AA: use #258193 as the text (4.53:1)
  • AAA: use #1c606e as the text (7.12:1)
  • AA: or shift the background to #3d3d3d (4.54:1)
  • AAA: or shift the background to #1c1c1c (7.12:1)
Aaon black
8.77:1passpasspassPasses 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 #3bb6ce as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#3bb6ce reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3bb6ce
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 #3bb6ce and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bb6ce-a2b6be-df4e7c-1f252d-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