ColorTool
Log in
#166DCD

#166dcd ≈ True Blue

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

#166dcd 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 80.39% blue; printed in CMYK it uses 89.27% cyan, 46.83% magenta, 0% yellow and 19.61% black. Its hue angle is 211.48°, with 80.62% saturation and 44.51% 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 5.12:1 (WCAG AA). The closest named color is True Blue (#0073cf), ΔE 2.62.

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 luminance0.1552

Complementary

  1. #166dcd
  2. #cd7616

Split complementary

  1. #166dcd
  2. #cd1b16
  3. #c8cd16

Analogous

  1. #16c8cd
  2. #166dcd
  3. #1b16cd

Triadic

  1. #166dcd
  2. #cd166d
  3. #6dcd16

Tetradic

  1. #166dcd
  2. #7616cd
  3. #cd7616
  4. #6dcd16

Square

  1. #166dcd
  2. #cd16c8
  3. #cd7616
  4. #16cd1b

Monochromatic

  1. #072443
  2. #0f4888
  3. #166dcd
  4. #4594eb
  5. #8abbf2

Shades

#166dcd mixed progressively with black.

  1. #166dcd
  2. #1462b9
  3. #1257a4
  4. #0f4c90
  5. #0d417b
  6. #0b3767
  7. #092c52
  8. #07213e
  9. #041629
  10. #020b15
  11. #000000

Tints

#166dcd mixed progressively with white.

  1. #166dcd
  2. #2d7cd2
  3. #458ad7
  4. #5c99dc
  5. #73a7e1
  6. #8bb6e6
  7. #a2c5eb
  8. #b9d3f0
  9. #d0e2f5
  10. #e8f0fa
  11. #ffffff

Tones

#166dcd mixed progressively with gray.

  1. #166dcd
  2. #216fc5
  3. #2b71be
  4. #3673b6
  5. #4075ae
  6. #4b77a7
  7. #56789f
  8. #607a97
  9. #6b7c8f
  10. #757e88
  11. #808080

Readable text 5.12:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.1:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #6e6e6e ≈ 0.003% of males
Achromatomaly #576d9d ≈ 0.001% of males
Protanopia #3676d1 ≈ 1.01% of males
Deuteranopia #0066cb ≈ 1.27% of males
Tritanopia #008493 ≈ 0.0001% of males
Protanomaly #2c73cf ≈ 1.08% of males
Deuteranomaly #0169cc ≈ 4.63% of males
Tritanomaly #007cad ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-166dcd {
  color: #166dcd;
}
Background
.bg-166dcd {
  background-color: #166dcd;
  color: #ffffff;
}
Border
.border-166dcd {
  border: 2px solid #166dcd;
}
CSS variables
:root {
  --color-primary: #166dcd;
  --color-primary-rgb: 22 109 205;
  --color-primary-hsl: 211 81% 45%;
}
Gradient
.gradient-166dcd {
  background: linear-gradient(135deg, #166dcd, #1b16cd);
}
Colored shadow
.shadow-166dcd {
  box-shadow: 0 8px 24px rgb(22 109 205 / 0.35);
}

#0073cf True Blue ΔE 2.62 #0072bb French Blue ΔE 4.31 #1560bd Denim ΔE 4.87 #417dc1 Tufts Blue ΔE 5.81 #436b95 Queen Blue ΔE 6.01 #0067a5 Medium Persian Blue ΔE 6.06 #4169e1 Royal Blue ΔE 6.25 #e99232 Inverted #6e6e6e Grayscale 

True Blue
#166dcd  rgb(22, 109, 205)  hsl(211, 81%, 45%)  True Blue
#cd7616  rgb(205, 118, 22)  hsl(31, 81%, 45%)  Ochre
#cd166d  rgb(205, 22, 109)  hsl(331, 81%, 45%)  Dogwood Rose
#6dcd16  rgb(109, 205, 22)  hsl(91, 81%, 45%)  Lime Green