Color

#3bd2e3

#3bd2e3
hex#3bd2e3
rgbrgb(59, 210, 227)
hslhsl(186, 75%, 56%)
oklchoklch(0.794 0.123 206.3)
Closest name: darkturquoise (#00ced1)Relative luminance 0.5257

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e34b3b

#3be3a0 · #3b7ee3

#e33bd2 · #d2e33b

Split-complementary

Open in tool →

#e33b7e · #e3a03b

#a03be3 · #e34b3b · #7ee33b

Contrast

#3bd2e3 as textRatioAAAA largeAAAFix
Aaon white
1.82:1failfailfail
  • AA: use #147e8a as the text (4.79:1)
  • AAA: use #0f626b as the text (7.05:1)
  • AA: or shift the background to #4d4d4d (4.63:1)
  • AAA: or shift the background to #303030 (7.24:1)
Aaon black
11.51:1passpasspassPasses 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 #3bd2e3 as the background.

Brands using this color

Fonts for this mood

#3bd2e3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3bd2e3
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 #3bd2e3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bd2e3-a2b8be-df4e86-1f262d-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