Color

#3abbcf

#3abbcf
hex#3abbcf
rgbrgb(58, 187, 207)
hslhsl(188, 61%, 52%)
oklchoklch(0.732 0.112 210.1)
Closest name: Blue Bobbin (#52b4ca)Relative luminance 0.4095

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cf4e3a

#3acf99 · #3a71cf

#cf3abb · #bbcf3a

Split-complementary

Open in tool →

#cf3a71 · #cf993a

#993acf · #cf4e3a · #71cf3a

Contrast

#3abbcf as textRatioAAAA largeAAAFix
Aaon white
2.29:1failfailfail
  • AA: use #238190 as the text (4.55:1)
  • AAA: use #1a606b as the text (7.17:1)
  • AA: or shift the background to #404040 (4.54:1)
  • AAA: or shift the background to #212121 (7.05:1)
Aaon black
9.19:1passpasspassPasses 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 #3abbcf as the background.

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/3abbcf-a2b7be-df4e81-1f252d-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