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#3366FF

#3366ff ≈ Ultramarine Blue

  • blue
  • Lightness: medium
  • Saturation: vivid
  • Cool
  • Web safe
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#3366ff is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 20% red, 40% green and 100% blue; printed in CMYK it uses 80% cyan, 60% magenta, 0% yellow and 0% black. Its hue angle is 225°, with 100% saturation and 60% lightness in HSL. It is a cool color, often associated with trust, stability and focus. 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 4.68:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 1.25.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3366ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1743

Complementary

  1. #3366ff
  2. #ffcc33

Split complementary

  1. #3366ff
  2. #ff6633
  3. #ccff33

Analogous

  1. #33ccff
  2. #3366ff
  3. #6633ff

Triadic

  1. #3366ff
  2. #ff3366
  3. #66ff33

Tetradic

  1. #3366ff
  2. #cc33ff
  3. #ffcc33
  4. #66ff33

Square

  1. #3366ff
  2. #ff33cc
  3. #ffcc33
  4. #33ff66

Monochromatic

  1. #002699
  2. #0039e6
  3. #3366ff
  4. #809fff
  5. #ccd9ff

Shades

#3366ff mixed progressively with black.

  1. #3366ff
  2. #2e5ce6
  3. #2952cc
  4. #2447b3
  5. #1f3d99
  6. #1a3380
  7. #142966
  8. #0f1f4d
  9. #0a1433
  10. #050a1a
  11. #000000

Tints

#3366ff mixed progressively with white.

  1. #3366ff
  2. #4775ff
  3. #5c85ff
  4. #7094ff
  5. #85a3ff
  6. #99b3ff
  7. #adc2ff
  8. #c2d1ff
  9. #d6e0ff
  10. #ebf0ff
  11. #ffffff

Tones

#3366ff mixed progressively with gray.

  1. #3366ff
  2. #3b69f2
  3. #426be6
  4. #4a6ed9
  5. #5270cc
  6. #5a73c0
  7. #6176b3
  8. #6978a6
  9. #717b99
  10. #787d8d
  11. #808080

Readable text 4.68:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.49:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #747474 ≈ 0.003% of males
Achromatomaly #606fbc ≈ 0.001% of males
Protanopia #007eff ≈ 1.01% of males
Deuteranopia #006bfc ≈ 1.27% of males
Tritanopia #008ea9 ≈ 0.0001% of males
Protanomaly #0075ff ≈ 1.08% of males
Deuteranomaly #0069fd ≈ 4.63% of males
Tritanomaly #0080d1 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-3366ff {
  color: #3366ff;
}
Background
.bg-3366ff {
  background-color: #3366ff;
  color: #ffffff;
}
Border
.border-3366ff {
  border: 2px solid #3366ff;
}
CSS variables
:root {
  --color-primary: #3366ff;
  --color-primary-rgb: 51 102 255;
  --color-primary-hsl: 225 100% 60%;
}
Gradient
.gradient-3366ff {
  background: linear-gradient(135deg, #3366ff, #6633ff);
}
Colored shadow
.shadow-3366ff {
  box-shadow: 0 8px 24px rgb(51 102 255 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 1.25 #4169e1 Royal Blue ΔE 3.49 #0070ff Brandeis Blue ΔE 4.42 #7b68ee Medium Slate Blue ΔE 8.76 #6050dc Majorelle Blue ΔE 9.54 #6a5acd Slate Blue ΔE 9.83 #1560bd Denim ΔE 9.84 #cc9900 Inverted #747474 Grayscale 

Ultramarine Blue
#3366ff  rgb(51, 102, 255)  hsl(225, 100%, 60%)  Ultramarine Blue
#ffcc33  rgb(255, 204, 51)  hsl(45, 100%, 60%)  Sunglow
#ff3366  rgb(255, 51, 102)  hsl(345, 100%, 60%)  Neon Fuchsia
#66ff33  rgb(102, 255, 51)  hsl(105, 100%, 60%)  Harlequin