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#2147AA

#2147aa ≈ Cobalt Blue

  • blue
  • Lightness: low
  • Saturation: strong
  • Cool
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#2147aa is a color from the blue family, with low lightness and strong saturation. In the RGB model it is made of 12.94% red, 27.84% green and 66.67% blue; printed in CMYK it uses 80.59% cyan, 58.24% magenta, 0% yellow and 33.33% black. Its hue angle is 223.36°, with 67.49% saturation and 39.8% 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 8.25:1 (WCAG AAA). The closest named color is Cobalt Blue (#0047ab), ΔE 1.77.

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 luminance0.0773

Complementary

  1. #2147aa
  2. #aa8421

Split complementary

  1. #2147aa
  2. #aa3f21
  3. #8baa21

Analogous

  1. #218baa
  2. #2147aa
  3. #3f21aa

Triadic

  1. #2147aa
  2. #aa2147
  3. #47aa21

Tetradic

  1. #2147aa
  2. #8421aa
  3. #aa8421
  4. #47aa21

Square

  1. #2147aa
  2. #aa218b
  3. #aa8421
  4. #21aa3f

Monochromatic

  1. #08112a
  2. #152c6a
  3. #2147aa
  4. #3e69da
  5. #7e9be6

Shades

#2147aa mixed progressively with black.

  1. #2147aa
  2. #1e4099
  3. #1a3988
  4. #173277
  5. #142b66
  6. #112455
  7. #0d1c44
  8. #0a1533
  9. #070e22
  10. #030711
  11. #000000

Tints

#2147aa mixed progressively with white.

  1. #2147aa
  2. #3759b3
  3. #4d6cbb
  4. #647ec4
  5. #7a91cc
  6. #90a3d5
  7. #a6b5dd
  8. #bcc8e6
  9. #d3daee
  10. #e9edf7
  11. #ffffff

Tones

#2147aa mixed progressively with gray.

  1. #2147aa
  2. #2b4da6
  3. #3452a2
  4. #3e589d
  5. #475e99
  6. #516495
  7. #5a6991
  8. #646f8d
  9. #6d7588
  10. #777a84
  11. #808080

Readable text 8.25:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.55:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #4f4f4f ≈ 0.003% of males
Achromatomaly #414c7e ≈ 0.001% of males
Protanopia #0055ad ≈ 1.01% of males
Deuteranopia #0048a8 ≈ 1.27% of males
Tritanopia #006071 ≈ 0.0001% of males
Protanomaly #0050ac ≈ 1.08% of males
Deuteranomaly #0048a9 ≈ 4.63% of males
Tritanomaly #00578c ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-2147aa {
  color: #2147aa;
}
Background
.bg-2147aa {
  background-color: #2147aa;
  color: #ffffff;
}
Border
.border-2147aa {
  border: 2px solid #2147aa;
}
CSS variables
:root {
  --color-primary: #2147aa;
  --color-primary-rgb: 33 71 170;
  --color-primary-hsl: 223 67% 40%;
}
Gradient
.gradient-2147aa {
  background: linear-gradient(135deg, #2147aa, #3f21aa);
}
Colored shadow
.shadow-2147aa {
  box-shadow: 0 8px 24px rgb(33 71 170 / 0.35);
}

#0047ab Cobalt Blue ΔE 1.77 #0f52ba Sapphire ΔE 4.28 #1c39bb Persian Blue ΔE 5.31 #0f4d92 Yale Blue ΔE 5.58 #1034a6 Egyptian Blue ΔE 5.81 #003399 Smalt ΔE 6.26 #4f42b5 Ocean Blue ΔE 7.28 #deb855 Inverted #4f4f4f Grayscale 

Cobalt Blue
#2147aa  rgb(33, 71, 170)  hsl(223, 67%, 40%)  Cobalt Blue
#aa8421  rgb(170, 132, 33)  hsl(43, 67%, 40%)  Dark Goldenrod
#aa2147  rgb(170, 33, 71)  hsl(343, 67%, 40%)  Vivid Burgundy
#47aa21  rgb(71, 170, 33)  hsl(103, 67%, 40%)  Kelly Green