Color

#3bbace

#3bbace
hex#3bbace
rgbrgb(59, 186, 206)
hslhsl(188, 60%, 52%)
oklchoklch(0.729 0.111 210.2)
Closest name: Blue Bobbin (#52b4ca)Relative luminance 0.405

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ce4f3b

#3bce98 · #3b71ce

#ce3bba · #bace3b

Split-complementary

Open in tool →

#ce3b71 · #ce983b

#983bce · #ce4f3b · #71ce3b

Contrast

#3bbace as textRatioAAAA largeAAAFix
Aaon white
2.31:1failfailfail
  • AA: use #24818f as the text (4.55:1)
  • AAA: use #1b5f6a as the text (7.26:1)
  • AA: or shift the background to #3d3d3d (4.71:1)
  • AAA: or shift the background to #1f1f1f (7.14:1)
Aaon black
9.1:1passpasspassPasses 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 #3bbace as the background.

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/3bbace-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