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#1D4591

#1d4591 ≈ Cobalt Blue

  • azure
  • Lightness: low
  • Saturation: moderate
  • Cool
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#1d4591 is a color from the azure family, with low lightness and moderate saturation. In the RGB model it is made of 11.37% red, 27.06% green and 56.86% blue; printed in CMYK it uses 80% cyan, 52.41% magenta, 0% yellow and 43.14% black. Its hue angle is 219.31°, with 66.67% saturation and 34.12% 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 9.08:1 (WCAG AAA). The closest named color is Cobalt Blue (#0047ab), ΔE 3.45.

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 luminance0.0656

Complementary

  1. #1d4591
  2. #91691d

Split complementary

  1. #1d4591
  2. #912f1d
  3. #7f911d

Analogous

  1. #1d7f91
  2. #1d4591
  3. #2f1d91

Triadic

  1. #1d4591
  2. #911d45
  3. #45911d

Tetradic

  1. #1d4591
  2. #691d91
  3. #91691d
  4. #45911d

Square

  1. #1d4591
  2. #911d7f
  3. #91691d
  4. #1d912f

Monochromatic

  1. #040812
  2. #102751
  3. #1d4591
  4. #2a63d1
  5. #6791e1

Shades

#1d4591 mixed progressively with black.

  1. #1d4591
  2. #1a3e83
  3. #173774
  4. #143066
  5. #112957
  6. #0f2349
  7. #0c1c3a
  8. #09152c
  9. #060e1d
  10. #03070f
  11. #000000

Tints

#1d4591 mixed progressively with white.

  1. #1d4591
  2. #34589c
  3. #4a6aa7
  4. #617db2
  5. #778fbd
  6. #8ea2c8
  7. #a5b5d3
  8. #bbc7de
  9. #d2dae9
  10. #e8ecf4
  11. #ffffff

Tones

#1d4591 mixed progressively with gray.

  1. #1d4591
  2. #274b8f
  3. #31518e
  4. #3b578c
  5. #455d8a
  6. #4f6389
  7. #586887
  8. #626e85
  9. #6c7483
  10. #767a82
  11. #808080

Readable text 9.08:1 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
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Text in this color

Background in this color

Border in this color

Text color
.text-1d4591 {
  color: #1d4591;
}
Background
.bg-1d4591 {
  background-color: #1d4591;
  color: #ffffff;
}
Border
.border-1d4591 {
  border: 2px solid #1d4591;
}
CSS variables
:root {
  --color-primary: #1d4591;
  --color-primary-rgb: 29 69 145;
  --color-primary-hsl: 219 67% 34%;
}
Gradient
.gradient-1d4591 {
  background: linear-gradient(135deg, #1d4591, #2f1d91);
}
Colored shadow
.shadow-1d4591 {
  box-shadow: 0 8px 24px rgb(29 69 145 / 0.35);
}

#0047ab Cobalt Blue ΔE 3.45 #0f4d92 Yale Blue ΔE 3.71 #003399 Smalt ΔE 6.17 #0f52ba Sapphire ΔE 6.39 #1034a6 Egyptian Blue ΔE 6.95 #1c39bb Persian Blue ΔE 7.98 #483d8b Dark Slate Blue ΔE 8.86 #e2ba6e Inverted #484848 Grayscale 

Cobalt Blue
#1d4591  rgb(29, 69, 145)  hsl(219, 67%, 34%)  Cobalt Blue
#91691d  rgb(145, 105, 29)  hsl(39, 67%, 34%)  Golden Brown
#911d45  rgb(145, 29, 69)  hsl(339, 67%, 34%)  Claret
#45911d  rgb(69, 145, 29)  hsl(99, 67%, 34%)  Islamic Green