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#21B4E2

#21b4e2 ≈ Deep Sky Blue

  • cyan
  • Lightness: medium
  • Saturation: vivid
  • Cool
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#21b4e2 is a color from the cyan family, with medium lightness and vivid saturation. In the RGB model it is made of 12.94% red, 70.59% green and 88.63% blue; printed in CMYK it uses 85.4% cyan, 20.35% magenta, 0% yellow and 11.37% black. Its hue angle is 194.3°, with 76.89% saturation and 50.78% 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 8.69:1 (WCAG AAA). The closest named color is Deep Sky Blue (#00bfff), ΔE 4.99.

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 luminance0.3846

Complementary

  1. #21b4e2
  2. #e24f21

Split complementary

  1. #21b4e2
  2. #e22153
  3. #e2af21

Analogous

  1. #21e2af
  2. #21b4e2
  3. #2153e2

Triadic

  1. #21b4e2
  2. #e221b4
  3. #b4e221

Tetradic

  1. #21b4e2
  2. #4f21e2
  3. #e24f21
  4. #b4e221

Square

  1. #21b4e2
  2. #af21e2
  3. #e24f21
  4. #53e221

Monochromatic

  1. #0c4a5e
  2. #1580a1
  3. #21b4e2
  4. #65cbeb
  5. #a8e2f4

Shades

#21b4e2 mixed progressively with black.

  1. #21b4e2
  2. #1ea2cb
  3. #1a90b5
  4. #177e9e
  5. #146c88
  6. #115a71
  7. #0d485a
  8. #0a3644
  9. #07242d
  10. #031217
  11. #000000

Tints

#21b4e2 mixed progressively with white.

  1. #21b4e2
  2. #37bce5
  3. #4dc3e8
  4. #64cbeb
  5. #7ad2ee
  6. #90daf1
  7. #a6e1f3
  8. #bce9f6
  9. #d3f0f9
  10. #e9f8fc
  11. #ffffff

Tones

#21b4e2 mixed progressively with gray.

  1. #21b4e2
  2. #2bafd8
  3. #34aace
  4. #3ea4c5
  5. #479fbb
  6. #519ab1
  7. #5a95a7
  8. #64909d
  9. #6d8a94
  10. #77858a
  11. #808080

Readable text 2.42:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕
Readable text 8.69:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓

Achromatopsia #a7a7a7 ≈ 0.003% of males
Achromatomaly #86acc1 ≈ 0.001% of males
Protanopia #9bb0e4 ≈ 1.01% of males
Deuteranopia #829fe1 ≈ 1.27% of males
Tritanopia #00c1c3 ≈ 0.0001% of males
Protanomaly #7cb2e3 ≈ 1.08% of males
Deuteranomaly #69a8e2 ≈ 4.63% of males
Tritanomaly #00bcd0 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-21b4e2 {
  color: #21b4e2;
}
Background
.bg-21b4e2 {
  background-color: #21b4e2;
  color: #000000;
}
Border
.border-21b4e2 {
  border: 2px solid #21b4e2;
}
CSS variables
:root {
  --color-primary: #21b4e2;
  --color-primary-rgb: 33 180 226;
  --color-primary-hsl: 194 77% 51%;
}
Gradient
.gradient-21b4e2 {
  background: linear-gradient(135deg, #21b4e2, #2153e2);
}
Colored shadow
.shadow-21b4e2 {
  box-shadow: 0 8px 24px rgb(33 180 226 / 0.35);
}

#00bfff Deep Sky Blue ΔE 4.99 #73a9c2 Moonstone Blue ΔE 7.66 #56a0d3 Carolina Blue ΔE 8.46 #73c2fb Maya Blue ΔE 8.89 #71a6d2 Iceberg ΔE 9.43 #87ceeb Sky Blue ΔE 9.68 #89cff0 Baby Blue ΔE 9.83 #de4b1d Inverted #a7a7a7 Grayscale 

Deep Sky Blue
#21b4e2  rgb(33, 180, 226)  hsl(194, 77%, 51%)  Deep Sky Blue
#e24f21  rgb(226, 79, 33)  hsl(14, 77%, 51%)  Flame
#e221b4  rgb(226, 33, 180)  hsl(314, 77%, 51%)  Shocking Pink
#b4e221  rgb(180, 226, 33)  hsl(74, 77%, 51%)  June Bud