ColorTool
Log in
#381FDD

#381fdd ≈ Blue

  • blue
  • Lightness: medium
  • Saturation: strong
  • Cool
Check contrast Explore in graph Random color

#381fdd is a color from the blue family, with medium lightness and strong saturation. In the RGB model it is made of 21.96% red, 12.16% green and 86.67% blue; printed in CMYK it uses 74.66% cyan, 85.97% magenta, 0% yellow and 13.33% black. Its hue angle is 247.89°, with 75.4% saturation and 49.41% 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 brand accents. White text on this color reaches a contrast ratio of 8.72:1 (WCAG AAA). The closest named color is Blue (#0000ff), ΔE 3.6.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3333cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0704

Complementary

  1. #381fdd
  2. #c4dd1f

Split complementary

  1. #381fdd
  2. #dd971f
  3. #65dd1f

Analogous

  1. #1f65dd
  2. #381fdd
  3. #971fdd

Triadic

  1. #381fdd
  2. #dd381f
  3. #1fdd38

Tetradic

  1. #381fdd
  2. #dd1fc4
  3. #c4dd1f
  4. #1fdd38

Square

  1. #381fdd
  2. #dd1f65
  3. #c4dd1f
  4. #1fdd97

Monochromatic

  1. #160c57
  2. #27169a
  3. #381fdd
  4. #7260e9
  5. #ada3f2

Shades

#381fdd mixed progressively with black.

  1. #381fdd
  2. #321cc7
  3. #2d19b1
  4. #27169b
  5. #221385
  6. #1c106f
  7. #160c58
  8. #110942
  9. #0b062c
  10. #060316
  11. #000000

Tints

#381fdd mixed progressively with white.

  1. #381fdd
  2. #4c35e0
  3. #604ce4
  4. #7462e7
  5. #8879eb
  6. #9c8fee
  7. #afa5f1
  8. #c3bcf5
  9. #d7d2f8
  10. #ebe9fc
  11. #ffffff

Tones

#381fdd mixed progressively with gray.

  1. #381fdd
  2. #3f29d4
  3. #4632ca
  4. #4e3cc1
  5. #5546b8
  6. #5c50af
  7. #6359a5
  8. #6a639c
  9. #726d93
  10. #797689
  11. #808080

Readable text 8.72:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.41:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #4b4b4b ≈ 0.003% of males
Achromatomaly #443e9c ≈ 0.001% of males
Protanopia #0053e2 ≈ 1.01% of males
Deuteranopia #0042da ≈ 1.27% of males
Tritanopia #006084 ≈ 0.0001% of males
Protanomaly #0044e0 ≈ 1.08% of males
Deuteranomaly #0037db ≈ 4.63% of males
Tritanomaly #004eaf ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-381fdd {
  color: #381fdd;
}
Background
.bg-381fdd {
  background-color: #381fdd;
  color: #ffffff;
}
Border
.border-381fdd {
  border: 2px solid #381fdd;
}
CSS variables
:root {
  --color-primary: #381fdd;
  --color-primary-rgb: 56 31 221;
  --color-primary-hsl: 248 75% 49%;
}
Gradient
.gradient-381fdd {
  background: linear-gradient(135deg, #381fdd, #971fdd);
}
Colored shadow
.shadow-381fdd {
  box-shadow: 0 8px 24px rgb(56 31 221 / 0.35);
}

#0000ff Blue ΔE 3.60 #3f00ff Ultramarine ΔE 3.95 #5218fa Han Purple ΔE 4.58 #0000cd Medium Blue ΔE 5.29 #1c39bb Persian Blue ΔE 7.19 #6f00ff Electric Indigo ΔE 7.33 #4f42b5 Ocean Blue ΔE 8.28 #c7e022 Inverted #4b4b4b Grayscale 

Blue
#381fdd  rgb(56, 31, 221)  hsl(248, 75%, 49%)  Blue
#c4dd1f  rgb(196, 221, 31)  hsl(68, 75%, 49%)  Pear
#dd381f  rgb(221, 56, 31)  hsl(8, 75%, 49%)  Lust
#1fdd38  rgb(31, 221, 56)  hsl(128, 75%, 49%)  Malachite