Color

#3dbbc2

#3dbbc2
hex#3dbbc2
rgbrgb(61, 187, 194)
hslhsl(183, 52%, 50%)
oklchoklch(0.727 0.108 200.5)
Closest name: Blue Bobbin (#52b4ca)Relative luminance 0.4043

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c2443d

#3dc286 · #3d79c2

#c23dbb · #bbc23d

Split-complementary

Open in tool →

#c23d79 · #c2863d

#863dc2 · #c2443d · #79c23d

Contrast

#3dbbc2 as textRatioAAAA largeAAAFix
Aaon white
2.31:1failfailfail
  • AA: use #2a7f84 as the text (4.7:1)
  • AAA: use #206165 as the text (7.1:1)
  • AA: or shift the background to #3d3d3d (4.7:1)
  • AAA: or shift the background to #1f1f1f (7.13:1)
Aaon black
9.09:1passpasspassPasses 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 #3dbbc2 as the background.

Brands using this color

Fonts for this mood

#3dbbc2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3dbbc2
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 #3dbbc2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3dbbc2-a2b9be-d4598e-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