ColorTool
Log in
#181EA5

#181ea5 ≈ Zaffre

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

#181ea5 is a color from the blue family, with low lightness and strong saturation. In the RGB model it is made of 9.41% red, 11.76% green and 64.71% blue; printed in CMYK it uses 85.45% cyan, 81.82% magenta, 0% yellow and 35.29% black. Its hue angle is 237.45°, with 74.6% saturation and 37.06% 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 11.88:1 (WCAG AAA). The closest named color is Zaffre (#0014a8), ΔE 1.88.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#003399
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0384

Complementary

  1. #181ea5
  2. #a59f18

Split complementary

  1. #181ea5
  2. #a55918
  3. #64a518

Analogous

  1. #1864a5
  2. #181ea5
  3. #5918a5

Triadic

  1. #181ea5
  2. #a5181e
  3. #1ea518

Tetradic

  1. #181ea5
  2. #9f18a5
  3. #a59f18
  4. #1ea518

Square

  1. #181ea5
  2. #a51864
  3. #a59f18
  4. #18a559

Monochromatic

  1. #05061f
  2. #0e1262
  3. #181ea5
  4. #2a31e0
  5. #6c72ea

Shades

#181ea5 mixed progressively with black.

  1. #181ea5
  2. #161b95
  3. #131884
  4. #111574
  5. #0e1263
  6. #0c0f53
  7. #0a0c42
  8. #070932
  9. #050621
  10. #020311
  11. #000000

Tints

#181ea5 mixed progressively with white.

  1. #181ea5
  2. #2f35ae
  3. #464bb7
  4. #5d62c0
  5. #7478c9
  6. #8c8fd2
  7. #a3a5db
  8. #babce4
  9. #d1d2ed
  10. #e8e9f6
  11. #ffffff

Tones

#181ea5 mixed progressively with gray.

  1. #181ea5
  2. #2228a1
  3. #2d329e
  4. #373b9a
  5. #424596
  6. #4c4f93
  7. #56598f
  8. #61638b
  9. #6b6c87
  10. #767684
  11. #808080

Readable text 11.88:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 1.77:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #373737 ≈ 0.003% of males
Achromatomaly #2d2f74 ≈ 0.001% of males
Protanopia #003ea9 ≈ 1.01% of males
Deuteranopia #0030a3 ≈ 1.27% of males
Tritanopia #004962 ≈ 0.0001% of males
Protanomaly #0034a7 ≈ 1.08% of males
Deuteranomaly #002aa4 ≈ 4.63% of males
Tritanomaly #003c82 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-181ea5 {
  color: #181ea5;
}
Background
.bg-181ea5 {
  background-color: #181ea5;
  color: #ffffff;
}
Border
.border-181ea5 {
  border: 2px solid #181ea5;
}
CSS variables
:root {
  --color-primary: #181ea5;
  --color-primary-rgb: 24 30 165;
  --color-primary-hsl: 237 75% 37%;
}
Gradient
.gradient-181ea5 {
  background: linear-gradient(135deg, #181ea5, #5918a5);
}
Colored shadow
.shadow-181ea5 {
  box-shadow: 0 8px 24px rgb(24 30 165 / 0.35);
}

#0014a8 Zaffre ΔE 1.88 #002395 Imperial Blue ΔE 3.11 #000f89 Phthalo Blue ΔE 5.02 #0000cd Medium Blue ΔE 5.37 #1034a6 Egyptian Blue ΔE 5.77 #00008b Dark Blue ΔE 6.18 #003399 Smalt ΔE 6.62 #e7e15a Inverted #373737 Grayscale 

Zaffre
#181ea5  rgb(24, 30, 165)  hsl(237, 75%, 37%)  Zaffre
#a59f18  rgb(165, 159, 24)  hsl(57, 75%, 37%)  Brass
#a5181e  rgb(165, 24, 30)  hsl(357, 75%, 37%)  Brown
#1ea518  rgb(30, 165, 24)  hsl(117, 75%, 37%)  Islamic Green