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#2F4BB7

#2f4bb7 ≈ Cobalt Blue

  • blue
  • Lightness: medium
  • Saturation: strong
  • Cool
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#2f4bb7 is a color from the blue family, with medium lightness and strong saturation. In the RGB model it is made of 18.43% red, 29.41% green and 71.76% blue; printed in CMYK it uses 74.32% cyan, 59.02% magenta, 0% yellow and 28.24% black. Its hue angle is 227.65°, with 59.13% saturation and 45.1% 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 7.47:1 (WCAG AAA). The closest named color is Cobalt Blue (#0047ab), ΔE 3.83.

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 luminance0.0906

Complementary

  1. #2f4bb7
  2. #b79b2f

Split complementary

  1. #2f4bb7
  2. #b7572f
  3. #8fb72f

Analogous

  1. #2f8fb7
  2. #2f4bb7
  3. #572fb7

Triadic

  1. #2f4bb7
  2. #b72f4b
  3. #4bb72f

Tetradic

  1. #2f4bb7
  2. #9b2fb7
  3. #b79b2f
  4. #4bb72f

Square

  1. #2f4bb7
  2. #b72f8f
  3. #b79b2f
  4. #2fb757

Monochromatic

  1. #10193d
  2. #1f327a
  3. #2f4bb7
  4. #5d76d5
  5. #9aa9e5

Shades

#2f4bb7 mixed progressively with black.

  1. #2f4bb7
  2. #2a44a5
  3. #263c92
  4. #213580
  5. #1c2d6e
  6. #18265c
  7. #131e49
  8. #0e1737
  9. #090f25
  10. #050812
  11. #000000

Tints

#2f4bb7 mixed progressively with white.

  1. #2f4bb7
  2. #445dbe
  3. #596fc5
  4. #6d81cd
  5. #8293d4
  6. #97a5db
  7. #acb7e2
  8. #c1c9e9
  9. #d5dbf1
  10. #eaedf8
  11. #ffffff

Tones

#2f4bb7 mixed progressively with gray.

  1. #2f4bb7
  2. #3750b2
  3. #3f56ac
  4. #475ba7
  5. #4f60a1
  6. #58669c
  7. #606b96
  8. #687091
  9. #70758b
  10. #787b86
  11. #808080

Readable text 7.47:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.81:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #555555 ≈ 0.003% of males
Achromatomaly #485187 ≈ 0.001% of males
Protanopia #005bbb ≈ 1.01% of males
Deuteranopia #004fb5 ≈ 1.27% of males
Tritanopia #006679 ≈ 0.0001% of males
Protanomaly #0155b9 ≈ 1.08% of males
Deuteranomaly #004db6 ≈ 4.63% of males
Tritanomaly #005c96 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-2f4bb7 {
  color: #2f4bb7;
}
Background
.bg-2f4bb7 {
  background-color: #2f4bb7;
  color: #ffffff;
}
Border
.border-2f4bb7 {
  border: 2px solid #2f4bb7;
}
CSS variables
:root {
  --color-primary: #2f4bb7;
  --color-primary-rgb: 47 75 183;
  --color-primary-hsl: 228 59% 45%;
}
Gradient
.gradient-2f4bb7 {
  background: linear-gradient(135deg, #2f4bb7, #572fb7);
}
Colored shadow
.shadow-2f4bb7 {
  box-shadow: 0 8px 24px rgb(47 75 183 / 0.35);
}

#0047ab Cobalt Blue ΔE 3.83 #0f52ba Sapphire ΔE 3.94 #1c39bb Persian Blue ΔE 5.37 #4f42b5 Ocean Blue ΔE 5.90 #1034a6 Egyptian Blue ΔE 7.09 #5a4fcf Iris ΔE 7.11 #0f4d92 Yale Blue ΔE 7.35 #d0b448 Inverted #555555 Grayscale 

Cobalt Blue
#2f4bb7  rgb(47, 75, 183)  hsl(228, 59%, 45%)  Cobalt Blue
#b79b2f  rgb(183, 155, 47)  hsl(48, 59%, 45%)  Brass
#b72f4b  rgb(183, 47, 75)  hsl(348, 59%, 45%)  Cardinal
#4bb72f  rgb(75, 183, 47)  hsl(108, 59%, 45%)  Kelly Green