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#1855FF

#1855ff ≈ Ultramarine Blue

  • blue
  • Lightness: medium
  • Saturation: vivid
  • Cool
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#1855ff is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 9.41% red, 33.33% green and 100% blue; printed in CMYK it uses 90.59% cyan, 66.67% magenta, 0% yellow and 0% black. Its hue angle is 224.16°, with 100% saturation and 54.71% 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 5.55:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 5.26.

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 luminance0.1391

Complementary

  1. #1855ff
  2. #ffc218

Split complementary

  1. #1855ff
  2. #ff4f18
  3. #c8ff18

Analogous

  1. #18c8ff
  2. #1855ff
  3. #4f18ff

Triadic

  1. #1855ff
  2. #ff1855
  3. #55ff18

Tetradic

  1. #1855ff
  2. #c218ff
  3. #ffc218
  4. #55ff18

Square

  1. #1855ff
  2. #ff18c8
  3. #ffc218
  4. #18ff4f

Monochromatic

  1. #00217e
  2. #0035cb
  3. #1855ff
  4. #658dff
  5. #b1c6ff

Shades

#1855ff mixed progressively with black.

  1. #1855ff
  2. #164de6
  3. #1344cc
  4. #113cb3
  5. #0e3399
  6. #0c2b80
  7. #0a2266
  8. #071a4d
  9. #051133
  10. #02091a
  11. #000000

Tints

#1855ff mixed progressively with white.

  1. #1855ff
  2. #2f66ff
  3. #4677ff
  4. #5d88ff
  5. #7499ff
  6. #8caaff
  7. #a3bbff
  8. #baccff
  9. #d1ddff
  10. #e8eeff
  11. #ffffff

Tones

#1855ff mixed progressively with gray.

  1. #1855ff
  2. #2259f2
  3. #2d5ee6
  4. #3762d9
  5. #4266cc
  6. #4c6bc0
  7. #566fb3
  8. #6173a6
  9. #6b7799
  10. #767c8d
  11. #808080

Readable text 5.55:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 3.78:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #686868 ≈ 0.003% of males
Achromatomaly #5361b9 ≈ 0.001% of males
Protanopia #0073ff ≈ 1.01% of males
Deuteranopia #005efc ≈ 1.27% of males
Tritanopia #0084a3 ≈ 0.0001% of males
Protanomaly #0068ff ≈ 1.08% of males
Deuteranomaly #005afd ≈ 4.63% of males
Tritanomaly #0074ce ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-1855ff {
  color: #1855ff;
}
Background
.bg-1855ff {
  background-color: #1855ff;
  color: #ffffff;
}
Border
.border-1855ff {
  border: 2px solid #1855ff;
}
CSS variables
:root {
  --color-primary: #1855ff;
  --color-primary-rgb: 24 85 255;
  --color-primary-hsl: 224 100% 55%;
}
Gradient
.gradient-1855ff {
  background: linear-gradient(135deg, #1855ff, #4f18ff);
}
Colored shadow
.shadow-1855ff {
  box-shadow: 0 8px 24px rgb(24 85 255 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 5.26 #4169e1 Royal Blue ΔE 6.75 #6050dc Majorelle Blue ΔE 6.80 #5a4fcf Iris ΔE 7.43 #6a5acd Slate Blue ΔE 8.93 #0070ff Brandeis Blue ΔE 9.01 #0f52ba Sapphire ΔE 9.33 #e7aa00 Inverted #686868 Grayscale 

Ultramarine Blue
#1855ff  rgb(24, 85, 255)  hsl(224, 100%, 55%)  Ultramarine Blue
#ffc218  rgb(255, 194, 24)  hsl(44, 100%, 55%)  Mikado Yellow
#ff1855  rgb(255, 24, 85)  hsl(344, 100%, 55%)  Folly
#55ff18  rgb(85, 255, 24)  hsl(104, 100%, 55%)  Harlequin