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#371CF9

#371cf9 ≈ Ultramarine

  • blue
  • Lightness: medium
  • Saturation: vivid
  • Cool
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#371cf9 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 97.65% blue; printed in CMYK it uses 77.91% cyan, 88.76% magenta, 0% yellow and 2.35% black. Its hue angle is 247.33°, with 94.85% 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 7.79:1 (WCAG AAA). The closest named color is Ultramarine (#3f00ff), ΔE 1.64.

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 luminance0.0848

Complementary

  1. #371cf9
  2. #def91c

Split complementary

  1. #371cf9
  2. #f9a51c
  3. #6ff91c

Analogous

  1. #1c6ff9
  2. #371cf9
  3. #a51cf9

Triadic

  1. #371cf9
  2. #f9371c
  3. #1cf937

Tetradic

  1. #371cf9
  2. #f91cde
  3. #def91c
  4. #1cf937

Square

  1. #371cf9
  2. #f91c6f
  3. #def91c
  4. #1cf9a5

Monochromatic

  1. #120379
  2. #1c05c3
  3. #371cf9
  4. #7967fb
  5. #bab1fd

Shades

#371cf9 mixed progressively with black.

  1. #371cf9
  2. #3219e0
  3. #2c16c7
  4. #2714ae
  5. #211195
  6. #1c0e7d
  7. #160b64
  8. #11084b
  9. #0b0632
  10. #060319
  11. #000000

Tints

#371cf9 mixed progressively with white.

  1. #371cf9
  2. #4b33fa
  3. #5f49fa
  4. #7360fb
  5. #8777fb
  6. #9b8efc
  7. #afa4fd
  8. #c3bbfd
  9. #d7d2fe
  10. #ebe8fe
  11. #ffffff

Tones

#371cf9 mixed progressively with gray.

  1. #371cf9
  2. #3e26ed
  3. #4630e1
  4. #4d3ad5
  5. #5444c9
  6. #5c4ebd
  7. #6358b0
  8. #6a62a4
  9. #716c98
  10. #79768c
  11. #808080

Readable text 7.79:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.7:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #525252 ≈ 0.003% of males
Achromatomaly #4943af ≈ 0.001% of males
Protanopia #005cff ≈ 1.01% of males
Deuteranopia #0047f6 ≈ 1.27% of males
Tritanopia #006b94 ≈ 0.0001% of males
Protanomaly #004afc ≈ 1.08% of males
Deuteranomaly #003af7 ≈ 4.63% of males
Tritanomaly #0056c5 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-371cf9 {
  color: #371cf9;
}
Background
.bg-371cf9 {
  background-color: #371cf9;
  color: #ffffff;
}
Border
.border-371cf9 {
  border: 2px solid #371cf9;
}
CSS variables
:root {
  --color-primary: #371cf9;
  --color-primary-rgb: 55 28 249;
  --color-primary-hsl: 247 95% 54%;
}
Gradient
.gradient-371cf9 {
  background: linear-gradient(135deg, #371cf9, #a51cf9);
}
Colored shadow
.shadow-371cf9 {
  box-shadow: 0 8px 24px rgb(55 28 249 / 0.35);
}

#3f00ff Ultramarine ΔE 1.64 #5218fa Han Purple ΔE 2.12 #0000ff Blue ΔE 2.59 #6f00ff Electric Indigo ΔE 5.22 #0000cd Medium Blue ΔE 7.90 #1c39bb Persian Blue ΔE 9.15 #8f00ff Electric Violet ΔE 9.53 #c8e306 Inverted #525252 Grayscale 

Ultramarine
#371cf9  rgb(55, 28, 249)  hsl(247, 95%, 54%)  Ultramarine
#def91c  rgb(222, 249, 28)  hsl(67, 95%, 54%)  Chartreuse Yellow
#f9371c  rgb(249, 55, 28)  hsl(7, 95%, 54%)  Scarlet
#1cf937  rgb(28, 249, 55)  hsl(127, 95%, 54%)  Lime