ColorTool
Log in
#21AFEF

#21afef ≈ Deep Sky Blue

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

#21afef is a color from the azure family, with medium lightness and vivid saturation. In the RGB model it is made of 12.94% red, 68.63% green and 93.73% blue; printed in CMYK it uses 86.19% cyan, 26.78% magenta, 0% yellow and 6.27% black. Its hue angle is 198.64°, with 86.55% saturation and 53.33% lightness in HSL. It is a cool color, often associated with openness, freedom and calm. Designers typically use it for technology products, finance and banking and call-to-action buttons. Black text on this color reaches a contrast ratio of 8.44:1 (WCAG AAA). The closest named color is Deep Sky Blue (#00bfff), ΔE 4.55.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3399ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.3722

Complementary

  1. #21afef
  2. #ef6121

Split complementary

  1. #21afef
  2. #ef2148
  3. #efc821

Analogous

  1. #21efc8
  2. #21afef
  3. #2148ef

Triadic

  1. #21afef
  2. #ef21af
  3. #afef21

Tetradic

  1. #21afef
  2. #6121ef
  3. #ef6121
  4. #afef21

Square

  1. #21afef
  2. #c821ef
  3. #ef6121
  4. #48ef21

Monochromatic

  1. #084f6f
  2. #0d82b6
  3. #21afef
  4. #68c9f4
  5. #b0e2f9

Shades

#21afef mixed progressively with black.

  1. #21afef
  2. #1e9ed7
  3. #1a8cbf
  4. #177ba7
  5. #14698f
  6. #115878
  7. #0d4660
  8. #0a3548
  9. #072330
  10. #031218
  11. #000000

Tints

#21afef mixed progressively with white.

  1. #21afef
  2. #37b7f1
  3. #4dbff2
  4. #64c7f4
  5. #7acff5
  6. #90d7f7
  7. #a6dff9
  8. #bce7fa
  9. #d3effc
  10. #e9f7fd
  11. #ffffff

Tones

#21afef mixed progressively with gray.

  1. #21afef
  2. #2baae4
  3. #34a6d9
  4. #3ea1ce
  5. #479cc3
  6. #5198b8
  7. #5a93ac
  8. #648ea1
  9. #6d8996
  10. #77858b
  11. #808080

Readable text 2.49:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕
Readable text 8.44:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓

Achromatopsia #a4a4a4 ≈ 0.003% of males
Achromatomaly #84a9c7 ≈ 0.001% of males
Protanopia #8faef2 ≈ 1.01% of males
Deuteranopia #759cee ≈ 1.27% of males
Tritanopia #00c0c5 ≈ 0.0001% of males
Protanomaly #73aff1 ≈ 1.08% of males
Deuteranomaly #5ea4ee ≈ 4.63% of males
Tritanomaly #00b9d7 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-21afef {
  color: #21afef;
}
Background
.bg-21afef {
  background-color: #21afef;
  color: #000000;
}
Border
.border-21afef {
  border: 2px solid #21afef;
}
CSS variables
:root {
  --color-primary: #21afef;
  --color-primary-rgb: 33 175 239;
  --color-primary-hsl: 199 87% 53%;
}
Gradient
.gradient-21afef {
  background: linear-gradient(135deg, #21afef, #2148ef);
}
Colored shadow
.shadow-21afef {
  box-shadow: 0 8px 24px rgb(33 175 239 / 0.35);
}

#00bfff Deep Sky Blue ΔE 4.55 #56a0d3 Carolina Blue ΔE 5.84 #73c2fb Maya Blue ΔE 7.26 #71a6d2 Iceberg ΔE 7.50 #73a9c2 Moonstone Blue ΔE 9.12 #87cefa Light Sky Blue ΔE 10.28 #89cff0 Baby Blue ΔE 11.46 #de5010 Inverted #a4a4a4 Grayscale 

Deep Sky Blue
#21afef  rgb(33, 175, 239)  hsl(199, 87%, 53%)  Deep Sky Blue
#ef6121  rgb(239, 97, 33)  hsl(19, 87%, 53%)  Persimmon
#ef21af  rgb(239, 33, 175)  hsl(319, 87%, 53%)  Shocking Pink
#afef21  rgb(175, 239, 33)  hsl(79, 87%, 53%)  Spring Bud