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#2B4BB7

#2b4bb7 ≈ Cobalt Blue

  • blue
  • Lightness: medium
  • Saturation: strong
  • Cool
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#2b4bb7 is a color from the blue family, with medium lightness and strong saturation. In the RGB model it is made of 16.86% red, 29.41% green and 71.76% blue; printed in CMYK it uses 76.5% cyan, 59.02% magenta, 0% yellow and 28.24% black. Its hue angle is 226.29°, with 61.95% saturation and 44.31% 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 7.52:1 (WCAG AAA). The closest named color is Cobalt Blue (#0047ab), ΔE 3.46.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3333cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0896

Complementary

  1. #2b4bb7
  2. #b7972b

Split complementary

  1. #2b4bb7
  2. #b7512b
  3. #91b72b

Analogous

  1. #2b91b7
  2. #2b4bb7
  3. #512bb7

Triadic

  1. #2b4bb7
  2. #b72b4b
  3. #4bb72b

Tetradic

  1. #2b4bb7
  2. #972bb7
  3. #b7972b
  4. #4bb72b

Square

  1. #2b4bb7
  2. #b72b91
  3. #b7972b
  4. #2bb751

Monochromatic

  1. #0e183b
  2. #1c3279
  3. #2b4bb7
  4. #5774d8
  5. #95a7e6

Shades

#2b4bb7 mixed progressively with black.

  1. #2b4bb7
  2. #2744a5
  3. #223c92
  4. #1e3580
  5. #1a2d6e
  6. #16265c
  7. #111e49
  8. #0d1737
  9. #090f25
  10. #040812
  11. #000000

Tints

#2b4bb7 mixed progressively with white.

  1. #2b4bb7
  2. #405dbe
  3. #556fc5
  4. #6b81cd
  5. #8093d4
  6. #95a5db
  7. #aab7e2
  8. #bfc9e9
  9. #d5dbf1
  10. #eaedf8
  11. #ffffff

Tones

#2b4bb7 mixed progressively with gray.

  1. #2b4bb7
  2. #3450b2
  3. #3c56ac
  4. #455ba7
  5. #4d60a1
  6. #56669c
  7. #5e6b96
  8. #677091
  9. #6f758b
  10. #787b86
  11. #808080

Readable text 7.52:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.79:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #545454 ≈ 0.003% of males
Achromatomaly #475187 ≈ 0.001% of males
Protanopia #005bbb ≈ 1.01% of males
Deuteranopia #004eb5 ≈ 1.27% of males
Tritanopia #006679 ≈ 0.0001% of males
Protanomaly #0055b9 ≈ 1.08% of males
Deuteranomaly #004db6 ≈ 4.63% of males
Tritanomaly #005d96 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-2b4bb7 {
  color: #2b4bb7;
}
Background
.bg-2b4bb7 {
  background-color: #2b4bb7;
  color: #ffffff;
}
Border
.border-2b4bb7 {
  border: 2px solid #2b4bb7;
}
CSS variables
:root {
  --color-primary: #2b4bb7;
  --color-primary-rgb: 43 75 183;
  --color-primary-hsl: 226 62% 44%;
}
Gradient
.gradient-2b4bb7 {
  background: linear-gradient(135deg, #2b4bb7, #512bb7);
}
Colored shadow
.shadow-2b4bb7 {
  box-shadow: 0 8px 24px rgb(43 75 183 / 0.35);
}

#0047ab Cobalt Blue ΔE 3.46 #0f52ba Sapphire ΔE 3.60 #1c39bb Persian Blue ΔE 5.44 #4f42b5 Ocean Blue ΔE 6.30 #0f4d92 Yale Blue ΔE 7.01 #1034a6 Egyptian Blue ΔE 7.07 #5a4fcf Iris ΔE 7.48 #d4b448 Inverted #545454 Grayscale 

Cobalt Blue
#2b4bb7  rgb(43, 75, 183)  hsl(226, 62%, 44%)  Cobalt Blue
#b7972b  rgb(183, 151, 43)  hsl(46, 62%, 44%)  Brass
#b72b4b  rgb(183, 43, 75)  hsl(346, 62%, 44%)  Cardinal
#4bb72b  rgb(75, 183, 43)  hsl(106, 62%, 44%)  Kelly Green