ColorTool
Log in
#0366EA

#0366ea ≈ Royal Blue

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

#0366ea is a color from the azure family, with medium lightness and vivid saturation. In the RGB model it is made of 1.18% red, 40% green and 91.76% blue; printed in CMYK it uses 98.72% cyan, 56.41% magenta, 0% yellow and 8.24% black. Its hue angle is 214.29°, with 97.47% saturation and 46.47% 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 5.13:1 (WCAG AA). The closest named color is Royal Blue (#4169e1), ΔE 3.18.

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 luminance0.1546

Complementary

  1. #0366ea
  2. #ea8703

Split complementary

  1. #0366ea
  2. #ea1403
  3. #d9ea03

Analogous

  1. #03d9ea
  2. #0366ea
  3. #1403ea

Triadic

  1. #0366ea
  2. #ea0366
  3. #66ea03

Tetradic

  1. #0366ea
  2. #8703ea
  3. #ea8703
  4. #66ea03

Square

  1. #0366ea
  2. #ea03d9
  3. #ea8703
  4. #03ea14

Monochromatic

  1. #012453
  2. #02459e
  3. #0366ea
  4. #3d8ffd
  5. #89bbfd

Shades

#0366ea mixed progressively with black.

  1. #0366ea
  2. #035cd3
  3. #0252bb
  4. #0247a4
  5. #023d8c
  6. #023375
  7. #01295e
  8. #011f46
  9. #01142f
  10. #000a17
  11. #000000

Tints

#0366ea mixed progressively with white.

  1. #0366ea
  2. #1c75ec
  3. #3585ee
  4. #4f94f0
  5. #68a3f2
  6. #81b3f5
  7. #9ac2f7
  8. #b3d1f9
  9. #cde0fb
  10. #e6f0fd
  11. #ffffff

Tones

#0366ea mixed progressively with gray.

  1. #0366ea
  2. #1069df
  3. #1c6bd5
  4. #296eca
  5. #3570c0
  6. #4273b5
  7. #4e76aa
  8. #5b78a0
  9. #677b95
  10. #747d8b
  11. #808080

Readable text 5.13:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.09:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #6e6e6e ≈ 0.003% of males
Achromatomaly #566bae ≈ 0.001% of males
Protanopia #0078ef ≈ 1.01% of males
Deuteranopia #0064e7 ≈ 1.27% of males
Tritanopia #00889e ≈ 0.0001% of males
Protanomaly #0071ed ≈ 1.08% of males
Deuteranomaly #0065e8 ≈ 4.63% of males
Tritanomaly #007cc1 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-0366ea {
  color: #0366ea;
}
Background
.bg-0366ea {
  background-color: #0366ea;
  color: #ffffff;
}
Border
.border-0366ea {
  border: 2px solid #0366ea;
}
CSS variables
:root {
  --color-primary: #0366ea;
  --color-primary-rgb: 3 102 234;
  --color-primary-hsl: 214 97% 46%;
}
Gradient
.gradient-0366ea {
  background: linear-gradient(135deg, #0366ea, #1403ea);
}
Colored shadow
.shadow-0366ea {
  box-shadow: 0 8px 24px rgb(3 102 234 / 0.35);
}

#4169e1 Royal Blue ΔE 3.18 #0070ff Brandeis Blue ΔE 4.33 #4166f5 Ultramarine Blue ΔE 4.50 #1560bd Denim ΔE 5.84 #0073cf True Blue ΔE 6.68 #436b95 Queen Blue ΔE 8.20 #0072bb French Blue ΔE 8.53 #fc9915 Inverted #6e6e6e Grayscale 

Royal Blue
#0366ea  rgb(3, 102, 234)  hsl(214, 97%, 46%)  Royal Blue
#ea8703  rgb(234, 135, 3)  hsl(34, 97%, 46%)  Fulvous
#ea0366  rgb(234, 3, 102)  hsl(334, 97%, 46%)  Razzmatazz
#66ea03  rgb(102, 234, 3)  hsl(94, 97%, 46%)  Lawn Green