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#0451FF

#0451ff ≈ Ultramarine Blue

  • blue
  • Lightness: medium
  • Saturation: vivid
  • Cool
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#0451ff is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 1.57% red, 31.76% green and 100% blue; printed in CMYK it uses 98.43% cyan, 68.24% magenta, 0% yellow and 0% black. Its hue angle is 221.59°, with 100% saturation and 50.78% 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 5.79:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 6.42.

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 luminance0.1313

Complementary

  1. #0451ff
  2. #ffb204

Split complementary

  1. #0451ff
  2. #ff3404
  3. #cfff04

Analogous

  1. #04cfff
  2. #0451ff
  3. #3404ff

Triadic

  1. #0451ff
  2. #ff0451
  3. #51ff04

Tetradic

  1. #0451ff
  2. #b204ff
  3. #ffb204
  4. #51ff04

Square

  1. #0451ff
  2. #ff04cf
  3. #ffb204
  4. #04ff34

Monochromatic

  1. #00216a
  2. #0038b6
  3. #0451ff
  4. #5086ff
  5. #9dbbff

Shades

#0451ff mixed progressively with black.

  1. #0451ff
  2. #0449e6
  3. #0341cc
  4. #0339b3
  5. #023199
  6. #022980
  7. #022066
  8. #01184d
  9. #011033
  10. #00081a
  11. #000000

Tints

#0451ff mixed progressively with white.

  1. #0451ff
  2. #1d62ff
  3. #3674ff
  4. #4f85ff
  5. #6897ff
  6. #82a8ff
  7. #9bb9ff
  8. #b4cbff
  9. #cddcff
  10. #e6eeff
  11. #ffffff

Tones

#0451ff mixed progressively with gray.

  1. #0451ff
  2. #1056f2
  3. #1d5ae6
  4. #295fd9
  5. #3664cc
  6. #4269c0
  7. #4e6db3
  8. #5b72a6
  9. #677799
  10. #747b8d
  11. #808080

Readable text 5.79:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 3.63:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #656565 ≈ 0.003% of males
Achromatomaly #505eb8 ≈ 0.001% of males
Protanopia #0071ff ≈ 1.01% of males
Deuteranopia #005afc ≈ 1.27% of males
Tritanopia #0082a2 ≈ 0.0001% of males
Protanomaly #0065ff ≈ 1.08% of males
Deuteranomaly #0057fd ≈ 4.63% of males
Tritanomaly #0072ce ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-0451ff {
  color: #0451ff;
}
Background
.bg-0451ff {
  background-color: #0451ff;
  color: #ffffff;
}
Border
.border-0451ff {
  border: 2px solid #0451ff;
}
CSS variables
:root {
  --color-primary: #0451ff;
  --color-primary-rgb: 4 81 255;
  --color-primary-hsl: 222 100% 51%;
}
Gradient
.gradient-0451ff {
  background: linear-gradient(135deg, #0451ff, #3404ff);
}
Colored shadow
.shadow-0451ff {
  box-shadow: 0 8px 24px rgb(4 81 255 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 6.42 #6050dc Majorelle Blue ΔE 6.73 #5a4fcf Iris ΔE 7.24 #4169e1 Royal Blue ΔE 7.77 #0f52ba Sapphire ΔE 9.09 #6a5acd Slate Blue ΔE 9.24 #0070ff Brandeis Blue ΔE 10.09 #fbae00 Inverted #656565 Grayscale 

Ultramarine Blue
#0451ff  rgb(4, 81, 255)  hsl(222, 100%, 51%)  Ultramarine Blue
#ffb204  rgb(255, 178, 4)  hsl(42, 100%, 51%)  Orange
#ff0451  rgb(255, 4, 81)  hsl(342, 100%, 51%)  Folly
#51ff04  rgb(81, 255, 4)  hsl(102, 100%, 51%)  Harlequin