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#1C4591

#1c4591 ≈ Cobalt Blue

  • azure
  • Lightness: low
  • Saturation: moderate
  • Cool
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#1c4591 is a color from the azure family, with low lightness and moderate saturation. In the RGB model it is made of 10.98% red, 27.06% green and 56.86% blue; printed in CMYK it uses 80.69% cyan, 52.41% magenta, 0% yellow and 43.14% black. Its hue angle is 218.97°, with 67.63% saturation and 33.92% 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 corporate identities. White text on this color reaches a contrast ratio of 9.09:1 (WCAG AAA). The closest named color is Cobalt Blue (#0047ab), ΔE 3.44.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#333399
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0655

Complementary

  1. #1c4591
  2. #91681c

Split complementary

  1. #1c4591
  2. #912d1c
  3. #80911c

Analogous

  1. #1c8091
  2. #1c4591
  3. #2d1c91

Triadic

  1. #1c4591
  2. #911c45
  3. #45911c

Tetradic

  1. #1c4591
  2. #681c91
  3. #91681c
  4. #45911c

Square

  1. #1c4591
  2. #911c80
  3. #91681c
  4. #1c912d

Monochromatic

  1. #030811
  2. #102651
  3. #1c4591
  4. #2864d1
  5. #6590e1

Shades

#1c4591 mixed progressively with black.

  1. #1c4591
  2. #193e83
  3. #163774
  4. #143066
  5. #112957
  6. #0e2349
  7. #0b1c3a
  8. #08152c
  9. #060e1d
  10. #03070f
  11. #000000

Tints

#1c4591 mixed progressively with white.

  1. #1c4591
  2. #33589c
  3. #496aa7
  4. #607db2
  5. #778fbd
  6. #8ea2c8
  7. #a4b5d3
  8. #bbc7de
  9. #d2dae9
  10. #e8ecf4
  11. #ffffff

Tones

#1c4591 mixed progressively with gray.

  1. #1c4591
  2. #264b8f
  3. #30518e
  4. #3a578c
  5. #445d8a
  6. #4e6389
  7. #586887
  8. #626e85
  9. #6c7483
  10. #767a82
  11. #808080

Readable text 9.09:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.31:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #484848 ≈ 0.003% of males
Achromatomaly #3b476d ≈ 0.001% of males
Protanopia #134e94 ≈ 1.01% of males
Deuteranopia #00438f ≈ 1.27% of males
Tritanopia #005764 ≈ 0.0001% of males
Protanomaly #174b93 ≈ 1.08% of males
Deuteranomaly #004490 ≈ 4.63% of males
Tritanomaly #005179 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-1c4591 {
  color: #1c4591;
}
Background
.bg-1c4591 {
  background-color: #1c4591;
  color: #ffffff;
}
Border
.border-1c4591 {
  border: 2px solid #1c4591;
}
CSS variables
:root {
  --color-primary: #1c4591;
  --color-primary-rgb: 28 69 145;
  --color-primary-hsl: 219 68% 34%;
}
Gradient
.gradient-1c4591 {
  background: linear-gradient(135deg, #1c4591, #2d1c91);
}
Colored shadow
.shadow-1c4591 {
  box-shadow: 0 8px 24px rgb(28 69 145 / 0.35);
}

#0047ab Cobalt Blue ΔE 3.44 #0f4d92 Yale Blue ΔE 3.63 #003399 Smalt ΔE 6.20 #0f52ba Sapphire ΔE 6.37 #1034a6 Egyptian Blue ΔE 6.99 #1c39bb Persian Blue ΔE 8.03 #483d8b Dark Slate Blue ΔE 8.97 #e3ba6e Inverted #484848 Grayscale 

Cobalt Blue
#1c4591  rgb(28, 69, 145)  hsl(219, 68%, 34%)  Cobalt Blue
#91681c  rgb(145, 104, 28)  hsl(39, 68%, 34%)  Golden Brown
#911c45  rgb(145, 28, 69)  hsl(339, 68%, 34%)  Claret
#45911c  rgb(69, 145, 28)  hsl(99, 68%, 34%)  Islamic Green