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#371CF4

#371cf4 ≈ Ultramarine

  • blue
  • Lightness: medium
  • Saturation: vivid
  • Cool
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#371cf4 is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 21.57% red, 10.98% green and 95.69% blue; printed in CMYK it uses 77.46% cyan, 88.52% magenta, 0% yellow and 4.31% black. Its hue angle is 247.5°, with 90.76% saturation and 53.33% 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 7.97:1 (WCAG AAA). The closest named color is Ultramarine (#3f00ff), ΔE 1.8.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3333ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0817

Complementary

  1. #371cf4
  2. #d9f41c

Split complementary

  1. #371cf4
  2. #f4a31c
  3. #6df41c

Analogous

  1. #1c6df4
  2. #371cf4
  3. #a31cf4

Triadic

  1. #371cf4
  2. #f4371c
  3. #1cf437

Tetradic

  1. #371cf4
  2. #f41cd9
  3. #d9f41c
  4. #1cf437

Square

  1. #371cf4
  2. #f41c6d
  3. #d9f41c
  4. #1cf4a3

Monochromatic

  1. #130571
  2. #1f09ba
  3. #371cf4
  4. #7765f8
  5. #b8aefb

Shades

#371cf4 mixed progressively with black.

  1. #371cf4
  2. #3219dc
  3. #2c16c3
  4. #2714ab
  5. #211192
  6. #1c0e7a
  7. #160b62
  8. #110849
  9. #0b0631
  10. #060318
  11. #000000

Tints

#371cf4 mixed progressively with white.

  1. #371cf4
  2. #4b33f5
  3. #5f49f6
  4. #7360f7
  5. #8777f8
  6. #9b8efa
  7. #afa4fb
  8. #c3bbfc
  9. #d7d2fd
  10. #ebe8fe
  11. #ffffff

Tones

#371cf4 mixed progressively with gray.

  1. #371cf4
  2. #3e26e8
  3. #4630dd
  4. #4d3ad1
  5. #5444c6
  6. #5c4eba
  7. #6358ae
  8. #6a62a3
  9. #716c97
  10. #79768c
  11. #808080

Readable text 7.97:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.63:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #515151 ≈ 0.003% of males
Achromatomaly #4842ac ≈ 0.001% of males
Protanopia #005af9 ≈ 1.01% of males
Deuteranopia #0046f1 ≈ 1.27% of males
Tritanopia #006991 ≈ 0.0001% of males
Protanomaly #0049f7 ≈ 1.08% of males
Deuteranomaly #0039f2 ≈ 4.63% of males
Tritanomaly #0054c1 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-371cf4 {
  color: #371cf4;
}
Background
.bg-371cf4 {
  background-color: #371cf4;
  color: #ffffff;
}
Border
.border-371cf4 {
  border: 2px solid #371cf4;
}
CSS variables
:root {
  --color-primary: #371cf4;
  --color-primary-rgb: 55 28 244;
  --color-primary-hsl: 248 91% 53%;
}
Gradient
.gradient-371cf4 {
  background: linear-gradient(135deg, #371cf4, #a31cf4);
}
Colored shadow
.shadow-371cf4 {
  box-shadow: 0 8px 24px rgb(55 28 244 / 0.35);
}

#3f00ff Ultramarine ΔE 1.80 #0000ff Blue ΔE 2.42 #5218fa Han Purple ΔE 2.46 #6f00ff Electric Indigo ΔE 5.54 #0000cd Medium Blue ΔE 7.34 #1c39bb Persian Blue ΔE 8.78 #4f42b5 Ocean Blue ΔE 9.42 #c8e30b Inverted #515151 Grayscale 

Ultramarine
#371cf4  rgb(55, 28, 244)  hsl(248, 91%, 53%)  Ultramarine
#d9f41c  rgb(217, 244, 28)  hsl(68, 91%, 53%)  Chartreuse Yellow
#f4371c  rgb(244, 55, 28)  hsl(8, 91%, 53%)  Scarlet
#1cf437  rgb(28, 244, 55)  hsl(128, 91%, 53%)  Lime