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#166DFD

#166dfd ≈ Brandeis Blue

  • azure
  • Lightness: medium
  • Saturation: vivid
  • Cool
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#166dfd is a color from the azure family, with medium lightness and vivid saturation. In the RGB model it is made of 8.63% red, 42.75% green and 99.22% blue; printed in CMYK it uses 91.3% cyan, 56.92% magenta, 0% yellow and 0.78% black. Its hue angle is 217.4°, with 98.3% saturation and 53.92% 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 4.64:1 (WCAG AA). The closest named color is Brandeis Blue (#0070ff), ΔE 1.24.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#0066ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.182

Complementary

  1. #166dfd
  2. #fda616

Split complementary

  1. #166dfd
  2. #fd3216
  3. #e1fd16

Analogous

  1. #16e1fd
  2. #166dfd
  3. #3216fd

Triadic

  1. #166dfd
  2. #fd166d
  3. #6dfd16

Tetradic

  1. #166dfd
  2. #a616fd
  3. #fda616
  4. #6dfd16

Square

  1. #166dfd
  2. #fd16e1
  3. #fda616
  4. #16fd32

Monochromatic

  1. #012e79
  2. #024bc5
  3. #166dfd
  4. #629dfe
  5. #aeccfe

Shades

#166dfd mixed progressively with black.

  1. #166dfd
  2. #1462e4
  3. #1257ca
  4. #0f4cb1
  5. #0d4198
  6. #0b377f
  7. #092c65
  8. #07214c
  9. #041633
  10. #020b19
  11. #000000

Tints

#166dfd mixed progressively with white.

  1. #166dfd
  2. #2d7cfd
  3. #458afd
  4. #5c99fe
  5. #73a7fe
  6. #8bb6fe
  7. #a2c5fe
  8. #b9d3fe
  9. #d0e2ff
  10. #e8f0ff
  11. #ffffff

Tones

#166dfd mixed progressively with gray.

  1. #166dfd
  2. #216ff1
  3. #2b71e4
  4. #3673d8
  5. #4075cb
  6. #4b77bf
  7. #5678b2
  8. #607aa6
  9. #6b7c99
  10. #757e8d
  11. #808080

Readable text 4.53:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.64:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #767676 ≈ 0.003% of males
Achromatomaly #5e73bc ≈ 0.001% of males
Protanopia #0081ff ≈ 1.01% of males
Deuteranopia #006dfa ≈ 1.27% of males
Tritanopia #0092aa ≈ 0.0001% of males
Protanomaly #0079ff ≈ 1.08% of males
Deuteranomaly #006dfb ≈ 4.63% of males
Tritanomaly #0085d1 ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-166dfd {
  color: #166dfd;
}
Background
.bg-166dfd {
  background-color: #166dfd;
  color: #000000;
}
Border
.border-166dfd {
  border: 2px solid #166dfd;
}
CSS variables
:root {
  --color-primary: #166dfd;
  --color-primary-rgb: 22 109 253;
  --color-primary-hsl: 217 98% 54%;
}
Gradient
.gradient-166dfd {
  background: linear-gradient(135deg, #166dfd, #3216fd);
}
Colored shadow
.shadow-166dfd {
  box-shadow: 0 8px 24px rgb(22 109 253 / 0.35);
}

#0070ff Brandeis Blue ΔE 1.24 #4169e1 Royal Blue ΔE 3.80 #4166f5 Ultramarine Blue ΔE 3.86 #0073cf True Blue ΔE 7.31 #417dc1 Tufts Blue ΔE 7.82 #1560bd Denim ΔE 9.17 #4682b4 Steel Blue ΔE 9.49 #e99202 Inverted #767676 Grayscale 

Brandeis Blue
#166dfd  rgb(22, 109, 253)  hsl(217, 98%, 54%)  Brandeis Blue
#fda616  rgb(253, 166, 22)  hsl(37, 98%, 54%)  Orange
#fd166d  rgb(253, 22, 109)  hsl(337, 98%, 54%)  Rose
#6dfd16  rgb(109, 253, 22)  hsl(97, 98%, 54%)  Lawn Green