Color

#3bf1ca

#3bf1ca
hex#3bf1ca
rgbrgb(59, 241, 202)
hslhsl(167, 87%, 59%)
oklchoklch(0.861 0.152 174.2)
Closest name: Aphrodite Aqua (#45e9c1)Relative luminance 0.681

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f13b63

#3bf16f · #3bbef1

#ca3bf1 · #f1ca3b

Split-complementary

Open in tool →

#f13bbe · #f16f3b

#6f3bf1 · #f13b63 · #bef13b

Contrast

#3bf1ca as textRatioAAAA largeAAAFix
Aaon white
1.44:1failfailfail
  • AA: use #09866b as the text (4.53:1)
  • AAA: use #076450 as the text (7.12:1)
  • AA: or shift the background to #5e5e5e (4.51:1)
  • AAA: or shift the background to #404040 (7.22:1)
Aaon black
14.62:1passpasspassPasses 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 #3bf1ca as the background.

Brands using this color

mcpConnect your agent — build around #3bf1ca
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 #3bf1ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bf1ca-a2bebb-d459af-1f2a2d-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