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#1D439B

#1d439b ≈ Cobalt Blue

  • blue
  • Lightness: low
  • Saturation: moderate
  • Cool
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#1d439b is a color from the blue family, with low lightness and moderate saturation. In the RGB model it is made of 11.37% red, 26.27% green and 60.78% blue; printed in CMYK it uses 81.29% cyan, 56.77% magenta, 0% yellow and 39.22% black. Its hue angle is 221.9°, with 68.48% saturation and 36.08% 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 9.02:1 (WCAG AAA). The closest named color is Cobalt Blue (#0047ab), ΔE 2.62.

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 luminance0.0664

Complementary

  1. #1d439b
  2. #9b751d

Split complementary

  1. #1d439b
  2. #9b361d
  3. #829b1d

Analogous

  1. #1d829b
  2. #1d439b
  3. #361d9b

Triadic

  1. #1d439b
  2. #9b1d43
  3. #439b1d

Tetradic

  1. #1d439b
  2. #751d9b
  3. #9b751d
  4. #439b1d

Square

  1. #1d439b
  2. #9b1d82
  3. #9b751d
  4. #1d9b36

Monochromatic

  1. #050b1a
  2. #11275b
  3. #1d439b
  4. #2d60d8
  5. #6d91e4

Shades

#1d439b mixed progressively with black.

  1. #1d439b
  2. #1a3c8c
  3. #17367c
  4. #142f6d
  5. #11285d
  6. #0f224e
  7. #0c1b3e
  8. #09142f
  9. #060d1f
  10. #030710
  11. #000000

Tints

#1d439b mixed progressively with white.

  1. #1d439b
  2. #3456a5
  3. #4a69af
  4. #617bb9
  5. #778ec3
  6. #8ea1cd
  7. #a5b4d7
  8. #bbc7e1
  9. #d2d9eb
  10. #e8ecf5
  11. #ffffff

Tones

#1d439b mixed progressively with gray.

  1. #1d439b
  2. #274998
  3. #314f96
  4. #3b5593
  5. #455b90
  6. #4f628e
  7. #58688b
  8. #626e88
  9. #6c7485
  10. #767a83
  11. #808080

Readable text 9.02:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.33:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #494949 ≈ 0.003% of males
Achromatomaly #3c4773 ≈ 0.001% of males
Protanopia #004f9e ≈ 1.01% of males
Deuteranopia #004399 ≈ 1.27% of males
Tritanopia #005968 ≈ 0.0001% of males
Protanomaly #044a9d ≈ 1.08% of males
Deuteranomaly #00439a ≈ 4.63% of males
Tritanomaly #005180 ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-1d439b {
  color: #1d439b;
}
Background
.bg-1d439b {
  background-color: #1d439b;
  color: #ffffff;
}
Border
.border-1d439b {
  border: 2px solid #1d439b;
}
CSS variables
:root {
  --color-primary: #1d439b;
  --color-primary-rgb: 29 67 155;
  --color-primary-hsl: 222 68% 36%;
}
Gradient
.gradient-1d439b {
  background: linear-gradient(135deg, #1d439b, #361d9b);
}
Colored shadow
.shadow-1d439b {
  box-shadow: 0 8px 24px rgb(29 67 155 / 0.35);
}

#0047ab Cobalt Blue ΔE 2.62 #003399 Smalt ΔE 4.97 #0f4d92 Yale Blue ΔE 5.05 #1034a6 Egyptian Blue ΔE 5.33 #0f52ba Sapphire ΔE 6.04 #1c39bb Persian Blue ΔE 6.16 #483d8b Dark Slate Blue ΔE 8.09 #e2bc64 Inverted #494949 Grayscale 

Cobalt Blue
#1d439b  rgb(29, 67, 155)  hsl(222, 68%, 36%)  Cobalt Blue
#9b751d  rgb(155, 117, 29)  hsl(42, 68%, 36%)  Golden Brown
#9b1d43  rgb(155, 29, 67)  hsl(342, 68%, 36%)  Vivid Burgundy
#439b1d  rgb(67, 155, 29)  hsl(102, 68%, 36%)  Islamic Green