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#284EA5

#284ea5 ≈ Cobalt Blue

  • blue
  • Lightness: medium
  • Saturation: moderate
  • Cool
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#284ea5 is a color from the blue family, with medium lightness and moderate saturation. In the RGB model it is made of 15.69% red, 30.59% green and 64.71% blue; printed in CMYK it uses 75.76% cyan, 52.73% magenta, 0% yellow and 35.29% black. Its hue angle is 221.76°, with 60.98% saturation and 40.2% 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 7.71:1 (WCAG AAA). The closest named color is Cobalt Blue (#0047ab), ΔE 2.72.

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 luminance0.0862

Complementary

  1. #284ea5
  2. #a57f28

Split complementary

  1. #284ea5
  2. #a54128
  3. #8da528

Analogous

  1. #288da5
  2. #284ea5
  3. #4128a5

Triadic

  1. #284ea5
  2. #a5284e
  3. #4ea528

Tetradic

  1. #284ea5
  2. #7f28a5
  3. #a57f28
  4. #4ea528

Square

  1. #284ea5
  2. #a5288d
  3. #a57f28
  4. #28a541

Monochromatic

  1. #0a142a
  2. #193167
  3. #284ea5
  4. #4771d2
  5. #85a1e1

Shades

#284ea5 mixed progressively with black.

  1. #284ea5
  2. #244695
  3. #203e84
  4. #1c3774
  5. #182f63
  6. #142753
  7. #101f42
  8. #0c1732
  9. #081021
  10. #040811
  11. #000000

Tints

#284ea5 mixed progressively with white.

  1. #284ea5
  2. #3e60ae
  3. #5371b7
  4. #6983c0
  5. #7e95c9
  6. #94a7d2
  7. #a9b8db
  8. #bfcae4
  9. #d4dced
  10. #eaedf6
  11. #ffffff

Tones

#284ea5 mixed progressively with gray.

  1. #284ea5
  2. #3153a1
  3. #3a589e
  4. #425d9a
  5. #4b6296
  6. #546793
  7. #5d6c8f
  8. #66718b
  9. #6e7687
  10. #777b84
  11. #808080

Readable text 7.71:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.72:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #535353 ≈ 0.003% of males
Achromatomaly #45517c ≈ 0.001% of males
Protanopia #1359a8 ≈ 1.01% of males
Deuteranopia #004da3 ≈ 1.27% of males
Tritanopia #006372 ≈ 0.0001% of males
Protanomaly #1d55a7 ≈ 1.08% of males
Deuteranomaly #034ea4 ≈ 4.63% of males
Tritanomaly #005b89 ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-284ea5 {
  color: #284ea5;
}
Background
.bg-284ea5 {
  background-color: #284ea5;
  color: #ffffff;
}
Border
.border-284ea5 {
  border: 2px solid #284ea5;
}
CSS variables
:root {
  --color-primary: #284ea5;
  --color-primary-rgb: 40 78 165;
  --color-primary-hsl: 222 61% 40%;
}
Gradient
.gradient-284ea5 {
  background: linear-gradient(135deg, #284ea5, #4128a5);
}
Colored shadow
.shadow-284ea5 {
  box-shadow: 0 8px 24px rgb(40 78 165 / 0.35);
}

#0047ab Cobalt Blue ΔE 2.72 #0f52ba Sapphire ΔE 3.09 #0f4d92 Yale Blue ΔE 4.18 #1560bd Denim ΔE 7.07 #26619c Lapis Lazuli ΔE 7.67 #1c39bb Persian Blue ΔE 7.71 #1034a6 Egyptian Blue ΔE 8.22 #d7b15a Inverted #535353 Grayscale 

Cobalt Blue
#284ea5  rgb(40, 78, 165)  hsl(222, 61%, 40%)  Cobalt Blue
#a57f28  rgb(165, 127, 40)  hsl(42, 61%, 40%)  Dark Goldenrod
#a5284e  rgb(165, 40, 78)  hsl(342, 61%, 40%)  Vivid Burgundy
#4ea528  rgb(78, 165, 40)  hsl(102, 61%, 40%)  Kelly Green