Gradient Page

#21D4FD

#21D4FD is the HEX color code for
Cyan / Aqua
#21D4FD

Cyan / Aqua

Contrast
Light
Luminance
64%
Color Conversions
Formats for Cyan / Aqua (#21D4FD) in various color spaces.
#21D4FD
33, 212, 253
191°, 98%, 56%
87%, 16%, 0%, 1%
0.805, 0.141, 219.2
--color-cyan-/-aqua: #21D4FD;

Shades & Tints

#e6faff
#b3f0fe
#81e7fe
#4eddfd
#1cd3fd
#02bae3
#0291b1
#01677e
#013e4c
#001519
DarkestBaseLightest

Color Harmonies

Complementary

#21D4FD
#fd4921

Analogous

#21fdb7
#21D4FD
#2166fd

Triadic

#21D4FD
#fd21d4
#d4fd21

Split Complementary

#21D4FD
#fd2166
#fdb721

UI Component Examples

See how #21D4FD looks when applied to real interface components.

Interactive Elements
Surface & Accent
Pro Tip!

Use lighter tints for backgrounds to maintain readability while keeping brand identity.

Status Indicator
Active
# CSS Variables
Copy-paste these variables into your global CSS to use this palette instantly.
:root {
  /* Cyan / Aqua Base */
  --color-primary: #21D4FD;
  --color-primary-rgb: 33 212 253;
  --color-primary-hsl: 191 98% 56%;
  
  /* Foreground text color based on contrast */
  --color-primary-foreground: #000000;

  /* Shades */
  --color-primary-50:  #e6faff;
  --color-primary-100: #b3f0fe;
  --color-primary-200: #81e7fe;
  --color-primary-300: #4eddfd;
  --color-primary-400: #1cd3fd;
  --color-primary-500: #02bae3;
  --color-primary-600: #0291b1;
  --color-primary-700: #01677e;
  --color-primary-800: #013e4c;
  --color-primary-900: #001519;
}

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#21D4FD Hex Color | Cyan / Aqua sl | UI Color Scheme Generator