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#3F66EA

#3f66ea ≈ Royal Blue

  • blue
  • Lightness: medium
  • Saturation: strong
  • Cool
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#3f66ea is a color from the blue family, with medium lightness and strong saturation. In the RGB model it is made of 24.71% red, 40% green and 91.76% blue; printed in CMYK it uses 73.08% cyan, 56.41% magenta, 0% yellow and 8.24% black. Its hue angle is 226.32°, with 80.28% saturation and 58.24% 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 4.88:1 (WCAG AA). The closest named color is Royal Blue (#4169e1), ΔE 1.5.

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 luminance0.165

Complementary

  1. #3f66ea
  2. #eac33f

Split complementary

  1. #3f66ea
  2. #ea6e3f
  3. #bbea3f

Analogous

  1. #3fbbea
  2. #3f66ea
  3. #6e3fea

Triadic

  1. #3f66ea
  2. #ea3f66
  3. #66ea3f

Tetradic

  1. #3f66ea
  2. #c33fea
  3. #eac33f
  4. #66ea3f

Square

  1. #3f66ea
  2. #ea3fbb
  3. #eac33f
  4. #3fea6e

Monochromatic

  1. #0e2982
  2. #163ec7
  3. #3f66ea
  4. #849df2
  5. #c9d4f9

Shades

#3f66ea mixed progressively with black.

  1. #3f66ea
  2. #395cd3
  3. #3252bb
  4. #2c47a4
  5. #263d8c
  6. #203375
  7. #19295e
  8. #131f46
  9. #0d142f
  10. #060a17
  11. #000000

Tints

#3f66ea mixed progressively with white.

  1. #3f66ea
  2. #5275ec
  3. #6585ee
  4. #7994f0
  5. #8ca3f2
  6. #9fb3f5
  7. #b2c2f7
  8. #c5d1f9
  9. #d9e0fb
  10. #ecf0fd
  11. #ffffff

Tones

#3f66ea mixed progressively with gray.

  1. #3f66ea
  2. #4669df
  3. #4c6bd5
  4. #536eca
  5. #5970c0
  6. #6073b5
  7. #6676aa
  8. #6d78a0
  9. #737b95
  10. #7a7d8b
  11. #808080

Readable text 4.88:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.3:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #717171 ≈ 0.003% of males
Achromatomaly #616daf ≈ 0.001% of males
Protanopia #0079ee ≈ 1.01% of males
Deuteranopia #0069e7 ≈ 1.27% of males
Tritanopia #00879e ≈ 0.0001% of males
Protanomaly #1472ed ≈ 1.08% of males
Deuteranomaly #0068e8 ≈ 4.63% of males
Tritanomaly #007bc1 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-3f66ea {
  color: #3f66ea;
}
Background
.bg-3f66ea {
  background-color: #3f66ea;
  color: #ffffff;
}
Border
.border-3f66ea {
  border: 2px solid #3f66ea;
}
CSS variables
:root {
  --color-primary: #3f66ea;
  --color-primary-rgb: 63 102 234;
  --color-primary-hsl: 226 80% 58%;
}
Gradient
.gradient-3f66ea {
  background: linear-gradient(135deg, #3f66ea, #6e3fea);
}
Colored shadow
.shadow-3f66ea {
  box-shadow: 0 8px 24px rgb(63 102 234 / 0.35);
}

#4169e1 Royal Blue ΔE 1.50 #4166f5 Ultramarine Blue ΔE 1.52 #0070ff Brandeis Blue ΔE 5.07 #1560bd Denim ΔE 8.13 #6a5acd Slate Blue ΔE 8.57 #6050dc Majorelle Blue ΔE 8.76 #7b68ee Medium Slate Blue ΔE 8.83 #c09915 Inverted #717171 Grayscale 

Royal Blue
#3f66ea  rgb(63, 102, 234)  hsl(226, 80%, 58%)  Royal Blue
#eac33f  rgb(234, 195, 63)  hsl(46, 80%, 58%)  Saffron
#ea3f66  rgb(234, 63, 102)  hsl(346, 80%, 58%)  Cerise
#66ea3f  rgb(102, 234, 63)  hsl(106, 80%, 58%)  Neon Green