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#21FBFF

#21fbff ≈ Aqua

  • cyan
  • Lightness: medium
  • Saturation: vivid
  • Cool
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#21fbff is a color from the cyan family, with medium lightness and vivid saturation. In the RGB model it is made of 12.94% red, 98.43% green and 100% blue; printed in CMYK it uses 87.06% cyan, 1.57% magenta, 0% yellow and 0% black. Its hue angle is 181.08°, with 100% saturation and 56.47% 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 16.31:1 (WCAG AAA). The closest named color is Aqua (#00ffff), ΔE 1.59.

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 luminance0.7654

Complementary

  1. #21fbff
  2. #ff2521

Split complementary

  1. #21fbff
  2. #ff218c
  3. #ff9421

Analogous

  1. #21ff94
  2. #21fbff
  3. #218cff

Triadic

  1. #21fbff
  2. #ff21fb
  3. #fbff21

Tetradic

  1. #21fbff
  2. #2521ff
  3. #ff2521
  4. #fbff21

Square

  1. #21fbff
  2. #9421ff
  3. #ff2521
  4. #8cff21

Monochromatic

  1. #008587
  2. #00d0d3
  3. #21fbff
  4. #6dfcff
  5. #bafeff

Shades

#21fbff mixed progressively with black.

  1. #21fbff
  2. #1ee2e6
  3. #1ac9cc
  4. #17b0b3
  5. #149799
  6. #117e80
  7. #0d6466
  8. #0a4b4d
  9. #073233
  10. #03191a
  11. #000000

Tints

#21fbff mixed progressively with white.

  1. #21fbff
  2. #37fbff
  3. #4dfcff
  4. #64fcff
  5. #7afdff
  6. #90fdff
  7. #a6fdff
  8. #bcfeff
  9. #d3feff
  10. #e9ffff
  11. #ffffff

Tones

#21fbff mixed progressively with gray.

  1. #21fbff
  2. #2beff2
  3. #34e2e6
  4. #3ed6d9
  5. #47cacc
  6. #51bec0
  7. #5ab1b3
  8. #64a5a6
  9. #6d9999
  10. #778c8d
  11. #808080

Readable text 1.29:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕
Readable text 16.31:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓

Achromatopsia #e3e3e3 ≈ 0.003% of males
Achromatomaly #b6edef ≈ 0.001% of males
Protanopia #e9efff ≈ 1.01% of males
Deuteranopia #cddaff ≈ 1.27% of males
Tritanopia #00fffc ≈ 0.0001% of males
Protanomaly #baf4ff ≈ 1.08% of males
Deuteranomaly #a4e8ff ≈ 4.63% of males
Tritanomaly #00fffd ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-21fbff {
  color: #21fbff;
}
Background
.bg-21fbff {
  background-color: #21fbff;
  color: #000000;
}
Border
.border-21fbff {
  border: 2px solid #21fbff;
}
CSS variables
:root {
  --color-primary: #21fbff;
  --color-primary-rgb: 33 251 255;
  --color-primary-hsl: 181 100% 56%;
}
Gradient
.gradient-21fbff {
  background: linear-gradient(135deg, #21fbff, #218cff);
}
Colored shadow
.shadow-21fbff {
  box-shadow: 0 8px 24px rgb(33 251 255 / 0.35);
}

#00ffff Aqua ΔE 1.59 #00ffff Cyan ΔE 1.59 #7df9ff Electric Blue ΔE 4.58 #08e8de Bright Turquoise ΔE 6.22 #00ffef Turquoise Blue ΔE 6.29 #40e0d0 Turquoise ΔE 8.90 #b2ffff Celeste ΔE 9.50 #de0400 Inverted #e3e3e3 Grayscale 

Aqua
#21fbff  rgb(33, 251, 255)  hsl(181, 100%, 56%)  Aqua
#ff2521  rgb(255, 37, 33)  hsl(1, 100%, 56%)  Red
#ff21fb  rgb(255, 33, 251)  hsl(301, 100%, 56%)  Fuchsia
#fbff21  rgb(251, 255, 33)  hsl(61, 100%, 56%)  Daffodil