Color

#3bcbde

#3bcbde
hex#3bcbde
rgbrgb(59, 203, 222)
hslhsl(187, 71%, 55%)
oklchoklch(0.776 0.12 208.1)
Closest name: darkturquoise (#00ced1)Relative luminance 0.4892

Tints & shades

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

Harmonies

Complementary

Open in tool →

#de4e3b

#3bde9f · #3b79de

#de3bcb · #cbde3b

Split-complementary

Open in tool →

#de3b79 · #de9f3b

#9f3bde · #de4e3b · #79de3b

Contrast

#3bcbde as textRatioAAAA largeAAAFix
Aaon white
1.95:1failfailfail
  • AA: use #188290 as the text (4.53:1)
  • AAA: use #12626d as the text (7.01:1)
  • AA: or shift the background to #4a4a4a (4.55:1)
  • AAA: or shift the background to #2b2b2b (7.27:1)
Aaon black
10.78:1passpasspassPasses 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 #3bcbde as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

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

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

tool url/palettes/new/3bcbde-a2b8be-df4e83-1f262d-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