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#0366FA

#0366fa ≈ Ultramarine Blue

  • azure
  • Lightness: medium
  • Saturation: vivid
  • Cool
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#0366fa 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 98.04% blue; printed in CMYK it uses 98.8% cyan, 59.2% magenta, 0% yellow and 1.96% black. Its hue angle is 215.95°, with 97.63% saturation and 49.61% 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 4.9:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 3.01.

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 luminance0.1642

Complementary

  1. #0366fa
  2. #fa9703

Split complementary

  1. #0366fa
  2. #fa1b03
  3. #e2fa03

Analogous

  1. #03e2fa
  2. #0366fa
  3. #1b03fa

Triadic

  1. #0366fa
  2. #fa0366
  3. #66fa03

Tetradic

  1. #0366fa
  2. #9703fa
  3. #fa9703
  4. #66fa03

Square

  1. #0366fa
  2. #fa03e2
  3. #fa9703
  4. #03fa1b

Monochromatic

  1. #012863
  2. #0247ae
  3. #0366fa
  4. #4d93fd
  5. #98c1fe

Shades

#0366fa mixed progressively with black.

  1. #0366fa
  2. #035ce1
  3. #0252c8
  4. #0247af
  5. #023d96
  6. #02337d
  7. #012964
  8. #011f4b
  9. #011432
  10. #000a19
  11. #000000

Tints

#0366fa mixed progressively with white.

  1. #0366fa
  2. #1c75fb
  3. #3585fb
  4. #4f94fc
  5. #68a3fc
  6. #81b3fd
  7. #9ac2fd
  8. #b3d1fe
  9. #cde0fe
  10. #e6f0ff
  11. #ffffff

Tones

#0366fa mixed progressively with gray.

  1. #0366fa
  2. #1069ee
  3. #1c6be2
  4. #296ed5
  5. #3570c9
  6. #4273bd
  7. #4e76b1
  8. #5b78a5
  9. #677b98
  10. #747d8c
  11. #808080

Readable text 4.9:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.28:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #717171 ≈ 0.003% of males
Achromatomaly #596db8 ≈ 0.001% of males
Protanopia #007bff ≈ 1.01% of males
Deuteranopia #0067f7 ≈ 1.27% of males
Tritanopia #008da6 ≈ 0.0001% of males
Protanomaly #0073fd ≈ 1.08% of males
Deuteranomaly #0066f8 ≈ 4.63% of males
Tritanomaly #007fcd ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-0366fa {
  color: #0366fa;
}
Background
.bg-0366fa {
  background-color: #0366fa;
  color: #ffffff;
}
Border
.border-0366fa {
  border: 2px solid #0366fa;
}
CSS variables
:root {
  --color-primary: #0366fa;
  --color-primary-rgb: 3 102 250;
  --color-primary-hsl: 216 98% 50%;
}
Gradient
.gradient-0366fa {
  background: linear-gradient(135deg, #0366fa, #1b03fa);
}
Colored shadow
.shadow-0366fa {
  box-shadow: 0 8px 24px rgb(3 102 250 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 3.01 #4169e1 Royal Blue ΔE 3.21 #0070ff Brandeis Blue ΔE 3.54 #1560bd Denim ΔE 7.90 #0073cf True Blue ΔE 8.08 #417dc1 Tufts Blue ΔE 9.31 #436b95 Queen Blue ΔE 9.63 #fc9905 Inverted #717171 Grayscale 

Ultramarine Blue
#0366fa  rgb(3, 102, 250)  hsl(216, 98%, 50%)  Ultramarine Blue
#fa9703  rgb(250, 151, 3)  hsl(36, 98%, 50%)  Orange Peel
#fa0366  rgb(250, 3, 102)  hsl(336, 98%, 50%)  Cerise
#66fa03  rgb(102, 250, 3)  hsl(96, 98%, 50%)  Lawn Green