ColorTool
Log in
#21F5EA

#21f5ea ≈ Turquoise Blue

  • cyan
  • Lightness: medium
  • Saturation: vivid
  • Cool
Check contrast Explore in graph Random color

#21f5ea is a color from the cyan family, with medium lightness and vivid saturation. In the RGB model it is made of 12.94% red, 96.08% green and 91.76% blue; printed in CMYK it uses 86.53% cyan, 0% magenta, 4.49% yellow and 3.92% black. Its hue angle is 176.89°, with 91.38% saturation and 54.51% lightness in HSL. It is a cool color, often associated with freshness, technology and clarity. Designers typically use it for health and wellness, technology products and call-to-action buttons. Black text on this color reaches a contrast ratio of 15.31:1 (WCAG AAA). The closest named color is Turquoise Blue (#00ffef), ΔE 2.49.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#33ffff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.7157

Complementary

  1. #21f5ea
  2. #f5212c

Split complementary

  1. #21f5ea
  2. #f52196
  3. #f58021

Analogous

  1. #21f580
  2. #21f5ea
  3. #2196f5

Triadic

  1. #21f5ea
  2. #ea21f5
  3. #f5ea21

Tetradic

  1. #21f5ea
  2. #212cf5
  3. #f5212c
  4. #f5ea21

Square

  1. #21f5ea
  2. #8021f5
  3. #f5212c
  4. #96f521

Monochromatic

  1. #057872
  2. #09c1b7
  3. #21f5ea
  4. #6af8f1
  5. #b3fcf8

Shades

#21f5ea mixed progressively with black.

  1. #21f5ea
  2. #1eddd3
  3. #1ac4bb
  4. #17aca4
  5. #14938c
  6. #117b75
  7. #0d625e
  8. #0a4a46
  9. #07312f
  10. #031917
  11. #000000

Tints

#21f5ea mixed progressively with white.

  1. #21f5ea
  2. #37f6ec
  3. #4df7ee
  4. #64f8f0
  5. #7af9f2
  6. #90faf5
  7. #a6fbf7
  8. #bcfcf9
  9. #d3fdfb
  10. #e9fefd
  11. #ffffff

Tones

#21f5ea mixed progressively with gray.

  1. #21f5ea
  2. #2be9df
  3. #34ded5
  4. #3ed2ca
  5. #47c6c0
  6. #51bbb5
  7. #5aafaa
  8. #64a3a0
  9. #6d9795
  10. #778c8b
  11. #808080

Readable text 1.37:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕
Readable text 15.31:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓

Achromatopsia #dcdcdc ≈ 0.003% of males
Achromatomaly #b0e6e2 ≈ 0.001% of males
Protanopia #e6e7ea ≈ 1.01% of males
Deuteranopia #ccd4ec ≈ 1.27% of males
Tritanopia #00fcf1 ≈ 0.0001% of males
Protanomaly #b9edea ≈ 1.08% of males
Deuteranomaly #a3e2eb ≈ 4.63% of males
Tritanomaly #00f9ee ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-21f5ea {
  color: #21f5ea;
}
Background
.bg-21f5ea {
  background-color: #21f5ea;
  color: #000000;
}
Border
.border-21f5ea {
  border: 2px solid #21f5ea;
}
CSS variables
:root {
  --color-primary: #21f5ea;
  --color-primary-rgb: 33 245 234;
  --color-primary-hsl: 177 91% 55%;
}
Gradient
.gradient-21f5ea {
  background: linear-gradient(135deg, #21f5ea, #2196f5);
}
Colored shadow
.shadow-21f5ea {
  box-shadow: 0 8px 24px rgb(33 245 234 / 0.35);
}

#00ffef Turquoise Blue ΔE 2.49 #08e8de Bright Turquoise ΔE 2.84 #00ffff Aqua ΔE 4.07 #00ffff Cyan ΔE 4.07 #40e0d0 Turquoise ΔE 5.06 #7df9ff Electric Blue ΔE 7.76 #48d1cc Medium Turquoise ΔE 8.37 #de0a15 Inverted #dcdcdc Grayscale 

Turquoise Blue
#21f5ea  rgb(33, 245, 234)  hsl(177, 91%, 55%)  Turquoise Blue
#f5212c  rgb(245, 33, 44)  hsl(357, 91%, 55%)  Tractor Red
#ea21f5  rgb(234, 33, 245)  hsl(297, 91%, 55%)  Fuchsia
#f5ea21  rgb(245, 234, 33)  hsl(57, 91%, 55%)  Titanium Yellow