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#217FF4

#217ff4 ≈ Tufts Blue

  • azure
  • Lightness: medium
  • Saturation: vivid
  • Cool
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#217ff4 is a color from the azure family, with medium lightness and vivid saturation. In the RGB model it is made of 12.94% red, 49.8% green and 95.69% blue; printed in CMYK it uses 86.48% cyan, 47.95% magenta, 0% yellow and 4.31% black. Its hue angle is 213.27°, with 90.56% saturation and 54.31% 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 5.41:1 (WCAG AA). The closest named color is Tufts Blue (#417dc1), ΔE 4.79.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3366ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.2203

Complementary

  1. #217ff4
  2. #f49621

Split complementary

  1. #217ff4
  2. #f42c21
  3. #e9f421

Analogous

  1. #21e9f4
  2. #217ff4
  3. #2c21f4

Triadic

  1. #217ff4
  2. #f4217f
  3. #7ff421

Tetradic

  1. #217ff4
  2. #9621f4
  3. #f49621
  4. #7ff421

Square

  1. #217ff4
  2. #f421e9
  3. #f49621
  4. #21f42c

Monochromatic

  1. #063876
  2. #095abf
  3. #217ff4
  4. #6aa9f8
  5. #b3d3fb

Shades

#217ff4 mixed progressively with black.

  1. #217ff4
  2. #1e72dc
  3. #1a66c3
  4. #1759ab
  5. #144c92
  6. #11407a
  7. #0d3362
  8. #0a2649
  9. #071931
  10. #030d18
  11. #000000

Tints

#217ff4 mixed progressively with white.

  1. #217ff4
  2. #378cf5
  3. #4d99f6
  4. #64a5f7
  5. #7ab2f8
  6. #90bffa
  7. #a6ccfb
  8. #bcd9fc
  9. #d3e5fd
  10. #e9f2fe
  11. #ffffff

Tones

#217ff4 mixed progressively with gray.

  1. #217ff4
  2. #2b7fe8
  3. #347fdd
  4. #3e7fd1
  5. #477fc6
  6. #5180ba
  7. #5a80ae
  8. #6480a3
  9. #6d8097
  10. #77808c
  11. #808080

Readable text 3.88:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.41:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #818181 ≈ 0.003% of males
Achromatomaly #6880bb ≈ 0.001% of males
Protanopia #398bf8 ≈ 1.01% of males
Deuteranopia #0079f2 ≈ 1.27% of males
Tritanopia #009bae ≈ 0.0001% of males
Protanomaly #3186f7 ≈ 1.08% of males
Deuteranomaly #007bf3 ≈ 4.63% of males
Tritanomaly #0091ce ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-217ff4 {
  color: #217ff4;
}
Background
.bg-217ff4 {
  background-color: #217ff4;
  color: #000000;
}
Border
.border-217ff4 {
  border: 2px solid #217ff4;
}
CSS variables
:root {
  --color-primary: #217ff4;
  --color-primary-rgb: 33 127 244;
  --color-primary-hsl: 213 91% 54%;
}
Gradient
.gradient-217ff4 {
  background: linear-gradient(135deg, #217ff4, #2c21f4);
}
Colored shadow
.shadow-217ff4 {
  box-shadow: 0 8px 24px rgb(33 127 244 / 0.35);
}

#417dc1 Tufts Blue ΔE 4.79 #318ce7 Bleu de France ΔE 4.85 #0070ff Brandeis Blue ΔE 5.40 #1e90ff Dodger Blue ΔE 5.93 #4682b4 Steel Blue ΔE 6.25 #5b92e5 United Nations Blue ΔE 6.48 #0073cf True Blue ΔE 6.52 #de800b Inverted #818181 Grayscale 

Tufts Blue
#217ff4  rgb(33, 127, 244)  hsl(213, 91%, 54%)  Tufts Blue
#f49621  rgb(244, 150, 33)  hsl(33, 91%, 54%)  Carrot Orange
#f4217f  rgb(244, 33, 127)  hsl(333, 91%, 54%)  Rose
#7ff421  rgb(127, 244, 33)  hsl(93, 91%, 54%)  Lawn Green