ColorTool
Log in
#3181EE

#3181ee ≈ Bleu de France

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

#3181ee is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 19.22% red, 50.59% green and 93.33% blue; printed in CMYK it uses 79.41% cyan, 45.8% magenta, 0% yellow and 6.67% black. Its hue angle is 214.6°, with 84.75% saturation and 56.27% lightness in HSL. It is a cool color, often associated with openness, freedom and calm. Designers typically use it for technology products, finance and banking and call-to-action buttons. Black text on this color reaches a contrast ratio of 5.51:1 (WCAG AA). The closest named color is Bleu de France (#318ce7), ΔE 4.35.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3399ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.2253

Complementary

  1. #3181ee
  2. #ee9e31

Split complementary

  1. #3181ee
  2. #ee3f31
  3. #e0ee31

Analogous

  1. #31e0ee
  2. #3181ee
  3. #3f31ee

Triadic

  1. #3181ee
  2. #ee3181
  3. #81ee31

Tetradic

  1. #3181ee
  2. #9e31ee
  3. #ee9e31
  4. #81ee31

Square

  1. #3181ee
  2. #ee31e0
  3. #ee9e31
  4. #31ee3f

Monochromatic

  1. #0a3a7c
  2. #105cc2
  3. #3181ee
  4. #78acf4
  5. #bed7fa

Shades

#3181ee mixed progressively with black.

  1. #3181ee
  2. #2c74d6
  3. #2767be
  4. #225aa7
  5. #1d4d8f
  6. #194177
  7. #14345f
  8. #0f2747
  9. #0a1a30
  10. #050d18
  11. #000000

Tints

#3181ee mixed progressively with white.

  1. #3181ee
  2. #468ef0
  3. #5a9af1
  4. #6fa7f3
  5. #83b3f5
  6. #98c0f7
  7. #adcdf8
  8. #c1d9fa
  9. #d6e6fc
  10. #eaf2fd
  11. #ffffff

Tones

#3181ee mixed progressively with gray.

  1. #3181ee
  2. #3981e3
  3. #4181d8
  4. #4981cd
  5. #5181c2
  6. #5981b7
  7. #6080ac
  8. #6880a1
  9. #708096
  10. #78808b
  11. #808080

Readable text 3.81:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.51:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #838383 ≈ 0.003% of males
Achromatomaly #6b82b8 ≈ 0.001% of males
Protanopia #468cf2 ≈ 1.01% of males
Deuteranopia #107bec ≈ 1.27% of males
Tritanopia #009bac ≈ 0.0001% of males
Protanomaly #3e88f0 ≈ 1.08% of males
Deuteranomaly #217ded ≈ 4.63% of males
Tritanomaly #0091ca ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-3181ee {
  color: #3181ee;
}
Background
.bg-3181ee {
  background-color: #3181ee;
  color: #000000;
}
Border
.border-3181ee {
  border: 2px solid #3181ee;
}
CSS variables
:root {
  --color-primary: #3181ee;
  --color-primary-rgb: 49 129 238;
  --color-primary-hsl: 215 85% 56%;
}
Gradient
.gradient-3181ee {
  background: linear-gradient(135deg, #3181ee, #3f31ee);
}
Colored shadow
.shadow-3181ee {
  box-shadow: 0 8px 24px rgb(49 129 238 / 0.35);
}

#318ce7 Bleu de France ΔE 4.35 #417dc1 Tufts Blue ΔE 4.61 #1e90ff Dodger Blue ΔE 5.53 #5b92e5 United Nations Blue ΔE 5.73 #0070ff Brandeis Blue ΔE 6.00 #4682b4 Steel Blue ΔE 6.00 #6082b6 Glaucous ΔE 6.66 #ce7e11 Inverted #838383 Grayscale 

Bleu de France
#3181ee  rgb(49, 129, 238)  hsl(215, 85%, 56%)  Bleu de France
#ee9e31  rgb(238, 158, 49)  hsl(35, 85%, 56%)  Marigold
#ee3181  rgb(238, 49, 129)  hsl(335, 85%, 56%)  Rose
#81ee31  rgb(129, 238, 49)  hsl(95, 85%, 56%)  Lawn Green