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#21BFDD

#21bfdd ≈ Sky Blue

  • cyan
  • Lightness: medium
  • Saturation: strong
  • Cool
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#21bfdd is a color from the cyan family, with medium lightness and strong saturation. In the RGB model it is made of 12.94% red, 74.9% green and 86.67% blue; printed in CMYK it uses 85.07% cyan, 13.57% magenta, 0% yellow and 13.33% black. Its hue angle is 189.57°, with 74.02% saturation and 49.8% 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 brand accents. Black text on this color reaches a contrast ratio of 9.56:1 (WCAG AAA). The closest named color is Sky Blue (#87ceeb), ΔE 8.63.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#33cccc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.4281

Complementary

  1. #21bfdd
  2. #dd3f21

Split complementary

  1. #21bfdd
  2. #dd2161
  3. #dd9d21

Analogous

  1. #21dd9d
  2. #21bfdd
  3. #2161dd

Triadic

  1. #21bfdd
  2. #dd21bf
  3. #bfdd21

Tetradic

  1. #21bfdd
  2. #3f21dd
  3. #dd3f21
  4. #bfdd21

Square

  1. #21bfdd
  2. #9d21dd
  3. #dd3f21
  4. #61dd21

Monochromatic

  1. #0d4c58
  2. #17859a
  3. #21bfdd
  4. #63d2e8
  5. #a5e5f2

Shades

#21bfdd mixed progressively with black.

  1. #21bfdd
  2. #1eacc7
  3. #1a99b1
  4. #17869b
  5. #147385
  6. #11606f
  7. #0d4c58
  8. #0a3942
  9. #07262c
  10. #031316
  11. #000000

Tints

#21bfdd mixed progressively with white.

  1. #21bfdd
  2. #37c5e0
  3. #4dcce4
  4. #64d2e7
  5. #7ad9eb
  6. #90dfee
  7. #a6e5f1
  8. #bcecf5
  9. #d3f2f8
  10. #e9f9fc
  11. #ffffff

Tones

#21bfdd mixed progressively with gray.

  1. #21bfdd
  2. #2bb9d4
  3. #34b2ca
  4. #3eacc1
  5. #47a6b8
  6. #51a0af
  7. #5a99a5
  8. #64939c
  9. #6d8d93
  10. #778689
  11. #808080

Readable text 2.2:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕
Readable text 9.56:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓

Achromatopsia #afafaf ≈ 0.003% of males
Achromatomaly #8cb6c3 ≈ 0.001% of males
Protanopia #aab9df ≈ 1.01% of males
Deuteranopia #92a7dd ≈ 1.27% of males
Tritanopia #00cac8 ≈ 0.0001% of males
Protanomaly #88bbde ≈ 1.08% of males
Deuteranomaly #76b1dd ≈ 4.63% of males
Tritanomaly #00c6d1 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-21bfdd {
  color: #21bfdd;
}
Background
.bg-21bfdd {
  background-color: #21bfdd;
  color: #000000;
}
Border
.border-21bfdd {
  border: 2px solid #21bfdd;
}
CSS variables
:root {
  --color-primary: #21bfdd;
  --color-primary-rgb: 33 191 221;
  --color-primary-hsl: 190 74% 50%;
}
Gradient
.gradient-21bfdd {
  background: linear-gradient(135deg, #21bfdd, #2161dd);
}
Colored shadow
.shadow-21bfdd {
  box-shadow: 0 8px 24px rgb(33 191 221 / 0.35);
}

#87ceeb Sky Blue ΔE 8.63 #00bfff Deep Sky Blue ΔE 9.22 #89cff0 Baby Blue ΔE 9.47 #73a9c2 Moonstone Blue ΔE 9.64 #00ced1 Dark Turquoise ΔE 10.21 #00cccc Robin Egg Blue ΔE 11.02 #87cefa Light Sky Blue ΔE 11.23 #de4022 Inverted #afafaf Grayscale 

Sky Blue
#21bfdd  rgb(33, 191, 221)  hsl(190, 74%, 50%)  Sky Blue
#dd3f21  rgb(221, 63, 33)  hsl(10, 74%, 50%)  Cinnabar
#dd21bf  rgb(221, 33, 191)  hsl(310, 74%, 50%)  Shocking Pink
#bfdd21  rgb(191, 221, 33)  hsl(70, 74%, 50%)  Pear