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#166DD4

#166dd4 ≈ True Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#166dd4 is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 8.63% red, 42.75% green and 83.14% blue; printed in CMYK it uses 89.62% cyan, 48.58% magenta, 0% yellow and 16.86% black. Its hue angle is 212.53°, with 81.2% saturation and 45.88% 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. White text on this color reaches a contrast ratio of 5.03:1 (WCAG AA). The closest named color is True Blue (#0073cf), ΔE 3.04.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#0066cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1586

Complementary

  1. #166dd4
  2. #d47d16

Split complementary

  1. #166dd4
  2. #d41e16
  3. #ccd416

Analogous

  1. #16ccd4
  2. #166dd4
  3. #1e16d4

Triadic

  1. #166dd4
  2. #d4166d
  3. #6dd416

Tetradic

  1. #166dd4
  2. #7d16d4
  3. #d47d16
  4. #6dd416

Square

  1. #166dd4
  2. #d416cc
  3. #d47d16
  4. #16d41e

Monochromatic

  1. #082649
  2. #0f498f
  3. #166dd4
  4. #4a94ec
  5. #90bdf3

Shades

#166dd4 mixed progressively with black.

  1. #166dd4
  2. #1462bf
  3. #1257aa
  4. #0f4c94
  5. #0d417f
  6. #0b376a
  7. #092c55
  8. #072140
  9. #04162a
  10. #020b15
  11. #000000

Tints

#166dd4 mixed progressively with white.

  1. #166dd4
  2. #2d7cd8
  3. #458add
  4. #5c99e1
  5. #73a7e5
  6. #8bb6ea
  7. #a2c5ee
  8. #b9d3f2
  9. #d0e2f6
  10. #e8f0fb
  11. #ffffff

Tones

#166dd4 mixed progressively with gray.

  1. #166dd4
  2. #216fcc
  3. #2b71c3
  4. #3673bb
  5. #4075b2
  6. #4b77aa
  7. #5678a2
  8. #607a99
  9. #6b7c91
  10. #757e88
  11. #808080

Readable text 5.03:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.17:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #6f6f6f ≈ 0.003% of males
Achromatomaly #586ea1 ≈ 0.001% of males
Protanopia #2e78d8 ≈ 1.01% of males
Deuteranopia #0067d2 ≈ 1.27% of males
Tritanopia #008696 ≈ 0.0001% of males
Protanomaly #2674d6 ≈ 1.08% of males
Deuteranomaly #006ad3 ≈ 4.63% of males
Tritanomaly #007db2 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-166dd4 {
  color: #166dd4;
}
Background
.bg-166dd4 {
  background-color: #166dd4;
  color: #ffffff;
}
Border
.border-166dd4 {
  border: 2px solid #166dd4;
}
CSS variables
:root {
  --color-primary: #166dd4;
  --color-primary-rgb: 22 109 212;
  --color-primary-hsl: 213 81% 46%;
}
Gradient
.gradient-166dd4 {
  background: linear-gradient(135deg, #166dd4, #1e16d4);
}
Colored shadow
.shadow-166dd4 {
  box-shadow: 0 8px 24px rgb(22 109 212 / 0.35);
}

#0073cf True Blue ΔE 3.04 #0072bb French Blue ΔE 5.08 #1560bd Denim ΔE 5.17 #0070ff Brandeis Blue ΔE 5.39 #4169e1 Royal Blue ΔE 5.45 #417dc1 Tufts Blue ΔE 5.83 #436b95 Queen Blue ΔE 6.52 #e9922b Inverted #6f6f6f Grayscale 

True Blue
#166dd4  rgb(22, 109, 212)  hsl(213, 81%, 46%)  True Blue
#d47d16  rgb(212, 125, 22)  hsl(33, 81%, 46%)  Bronze
#d4166d  rgb(212, 22, 109)  hsl(333, 81%, 46%)  Dogwood Rose
#6dd416  rgb(109, 212, 22)  hsl(93, 81%, 46%)  Lime Green