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#1663FF

#1663ff ≈ Ultramarine Blue

  • blue
  • Lightness: medium
  • Saturation: vivid
  • Cool
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#1663ff is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 8.63% red, 38.82% green and 100% blue; printed in CMYK it uses 91.37% cyan, 61.18% magenta, 0% yellow and 0% black. Its hue angle is 220.17°, with 100% saturation and 54.31% 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 4.93:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 2.31.

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 luminance0.1631

Complementary

  1. #1663ff
  2. #ffb216

Split complementary

  1. #1663ff
  2. #ff3d16
  3. #d8ff16

Analogous

  1. #16d8ff
  2. #1663ff
  3. #3d16ff

Triadic

  1. #1663ff
  2. #ff1663
  3. #63ff16

Tetradic

  1. #1663ff
  2. #b216ff
  3. #ffb216
  4. #63ff16

Square

  1. #1663ff
  2. #ff16d8
  3. #ffb216
  4. #16ff3d

Monochromatic

  1. #00297c
  2. #0042c8
  3. #1663ff
  4. #6296ff
  5. #afc9ff

Shades

#1663ff mixed progressively with black.

  1. #1663ff
  2. #1459e6
  3. #124fcc
  4. #0f45b3
  5. #0d3b99
  6. #0b3280
  7. #092866
  8. #071e4d
  9. #041433
  10. #020a1a
  11. #000000

Tints

#1663ff mixed progressively with white.

  1. #1663ff
  2. #2d73ff
  3. #4582ff
  4. #5c92ff
  5. #73a1ff
  6. #8bb1ff
  7. #a2c1ff
  8. #b9d0ff
  9. #d0e0ff
  10. #e8efff
  11. #ffffff

Tones

#1663ff mixed progressively with gray.

  1. #1663ff
  2. #2166f2
  3. #2b69e6
  4. #366cd9
  5. #406fcc
  6. #4b72c0
  7. #5674b3
  8. #6077a6
  9. #6b7a99
  10. #757d8d
  11. #808080

Readable text 4.93:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.26:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #707070 ≈ 0.003% of males
Achromatomaly #5a6bbb ≈ 0.001% of males
Protanopia #007bff ≈ 1.01% of males
Deuteranopia #0066fc ≈ 1.27% of males
Tritanopia #008ca8 ≈ 0.0001% of males
Protanomaly #0072ff ≈ 1.08% of males
Deuteranomaly #0065fd ≈ 4.63% of males
Tritanomaly #007ed0 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-1663ff {
  color: #1663ff;
}
Background
.bg-1663ff {
  background-color: #1663ff;
  color: #ffffff;
}
Border
.border-1663ff {
  border: 2px solid #1663ff;
}
CSS variables
:root {
  --color-primary: #1663ff;
  --color-primary-rgb: 22 99 255;
  --color-primary-hsl: 220 100% 54%;
}
Gradient
.gradient-1663ff {
  background: linear-gradient(135deg, #1663ff, #3d16ff);
}
Colored shadow
.shadow-1663ff {
  box-shadow: 0 8px 24px rgb(22 99 255 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 2.31 #4169e1 Royal Blue ΔE 3.67 #0070ff Brandeis Blue ΔE 4.63 #1560bd Denim ΔE 8.76 #0073cf True Blue ΔE 9.54 #6050dc Majorelle Blue ΔE 9.60 #7b68ee Medium Slate Blue ΔE 10.13 #e99c00 Inverted #707070 Grayscale 

Ultramarine Blue
#1663ff  rgb(22, 99, 255)  hsl(220, 100%, 54%)  Ultramarine Blue
#ffb216  rgb(255, 178, 22)  hsl(40, 100%, 54%)  Pastel Orange
#ff1663  rgb(255, 22, 99)  hsl(340, 100%, 54%)  Neon Fuchsia
#63ff16  rgb(99, 255, 22)  hsl(100, 100%, 54%)  Harlequin