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#3F4E91

#3f4e91 ≈ Cobalt Blue

  • blue
  • Lightness: medium
  • Saturation: moderate
  • Cool
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#3f4e91 is a color from the blue family, with medium lightness and moderate saturation. In the RGB model it is made of 24.71% red, 30.59% green and 56.86% blue; printed in CMYK it uses 56.55% cyan, 46.21% magenta, 0% yellow and 43.14% black. Its hue angle is 229.02°, with 39.42% saturation and 40.78% 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 7.75:1 (WCAG AAA). The closest named color is Cobalt Blue (#0047ab), ΔE 6.45.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#336699
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0855

Complementary

  1. #3f4e91
  2. #91823f

Split complementary

  1. #3f4e91
  2. #91593f
  3. #77913f

Analogous

  1. #3f7791
  2. #3f4e91
  3. #593f91

Triadic

  1. #3f4e91
  2. #913f4e
  3. #4e913f

Tetradic

  1. #3f4e91
  2. #823f91
  3. #91823f
  4. #4e913f

Square

  1. #3f4e91
  2. #913f77
  3. #91823f
  4. #3f9159

Monochromatic

  1. #111526
  2. #28315c
  3. #3f4e91
  4. #6272bb
  5. #97a2d2

Shades

#3f4e91 mixed progressively with black.

  1. #3f4e91
  2. #394683
  3. #323e74
  4. #2c3766
  5. #262f57
  6. #202749
  7. #191f3a
  8. #13172c
  9. #0d101d
  10. #06080f
  11. #000000

Tints

#3f4e91 mixed progressively with white.

  1. #3f4e91
  2. #52609c
  3. #6571a7
  4. #7983b2
  5. #8c95bd
  6. #9fa7c8
  7. #b2b8d3
  8. #c5cade
  9. #d9dce9
  10. #ecedf4
  11. #ffffff

Tones

#3f4e91 mixed progressively with gray.

  1. #3f4e91
  2. #46538f
  3. #4c588e
  4. #535d8c
  5. #59628a
  6. #606789
  7. #666c87
  8. #6d7185
  9. #737683
  10. #7a7b82
  11. #808080

Readable text 7.75:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.71:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #535353 ≈ 0.003% of males
Achromatomaly #4b5171 ≈ 0.001% of males
Protanopia #305694 ≈ 1.01% of males
Deuteranopia #264f90 ≈ 1.27% of males
Tritanopia #125d68 ≈ 0.0001% of males
Protanomaly #375393 ≈ 1.08% of males
Deuteranomaly #324f90 ≈ 4.63% of males
Tritanomaly #2a577b ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-3f4e91 {
  color: #3f4e91;
}
Background
.bg-3f4e91 {
  background-color: #3f4e91;
  color: #ffffff;
}
Border
.border-3f4e91 {
  border: 2px solid #3f4e91;
}
CSS variables
:root {
  --color-primary: #3f4e91;
  --color-primary-rgb: 63 78 145;
  --color-primary-hsl: 229 39% 41%;
}
Gradient
.gradient-3f4e91 {
  background: linear-gradient(135deg, #3f4e91, #593f91);
}
Colored shadow
.shadow-3f4e91 {
  box-shadow: 0 8px 24px rgb(63 78 145 / 0.35);
}

#0047ab Cobalt Blue ΔE 6.45 #0f4d92 Yale Blue ΔE 6.58 #483d8b Dark Slate Blue ΔE 6.90 #0f52ba Sapphire ΔE 7.26 #4f42b5 Ocean Blue ΔE 8.39 #003399 Smalt ΔE 9.30 #1034a6 Egyptian Blue ΔE 9.35 #c0b16e Inverted #535353 Grayscale 

Cobalt Blue
#3f4e91  rgb(63, 78, 145)  hsl(229, 39%, 41%)  Cobalt Blue
#91823f  rgb(145, 130, 63)  hsl(49, 39%, 41%)  Olive
#913f4e  rgb(145, 63, 78)  hsl(349, 39%, 41%)  Cordovan
#4e913f  rgb(78, 145, 63)  hsl(109, 39%, 41%)  Forest Green