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#1745BC

#1745bc ≈ Cobalt Blue

  • blue
  • Lightness: medium
  • Saturation: strong
  • Cool
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#1745bc is a color from the blue family, with medium lightness and strong saturation. In the RGB model it is made of 9.02% red, 27.06% green and 73.73% blue; printed in CMYK it uses 87.77% cyan, 63.3% magenta, 0% yellow and 26.27% black. Its hue angle is 223.27°, with 78.2% saturation and 41.37% 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 8.03:1 (WCAG AAA). The closest named color is Cobalt Blue (#0047ab), ΔE 3.33.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#0033cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0807

Complementary

  1. #1745bc
  2. #bc8e17

Split complementary

  1. #1745bc
  2. #bc3b17
  3. #97bc17

Analogous

  1. #1797bc
  2. #1745bc
  3. #3b17bc

Triadic

  1. #1745bc
  2. #bc1745
  3. #45bc17

Tetradic

  1. #1745bc
  2. #8e17bc
  3. #bc8e17
  4. #45bc17

Square

  1. #1745bc
  2. #bc1797
  3. #bc8e17
  4. #17bc3b

Monochromatic

  1. #061334
  2. #0f2c78
  3. #1745bc
  4. #3969e7
  5. #7d9def

Shades

#1745bc mixed progressively with black.

  1. #1745bc
  2. #153ea9
  3. #123796
  4. #103084
  5. #0e2971
  6. #0c235e
  7. #091c4b
  8. #071538
  9. #050e26
  10. #020713
  11. #000000

Tints

#1745bc mixed progressively with white.

  1. #1745bc
  2. #2e58c3
  3. #456ac9
  4. #5d7dd0
  5. #748fd7
  6. #8ba2de
  7. #a2b5e4
  8. #b9c7eb
  9. #d1daf2
  10. #e8ecf8
  11. #ffffff

Tones

#1745bc mixed progressively with gray.

  1. #1745bc
  2. #224bb6
  3. #2c51b0
  4. #3757aa
  5. #415da4
  6. #4c639e
  7. #566898
  8. #616e92
  9. #6b748c
  10. #767a86
  11. #808080

Readable text 8.03:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.61:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #505050 ≈ 0.003% of males
Achromatomaly #404c89 ≈ 0.001% of males
Protanopia #0058c0 ≈ 1.01% of males
Deuteranopia #0049ba ≈ 1.27% of males
Tritanopia #00657a ≈ 0.0001% of males
Protanomaly #0051be ≈ 1.08% of males
Deuteranomaly #0047bb ≈ 4.63% of males
Tritanomaly #005a99 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-1745bc {
  color: #1745bc;
}
Background
.bg-1745bc {
  background-color: #1745bc;
  color: #ffffff;
}
Border
.border-1745bc {
  border: 2px solid #1745bc;
}
CSS variables
:root {
  --color-primary: #1745bc;
  --color-primary-rgb: 23 69 188;
  --color-primary-hsl: 223 78% 41%;
}
Gradient
.gradient-1745bc {
  background: linear-gradient(135deg, #1745bc, #3b17bc);
}
Colored shadow
.shadow-1745bc {
  box-shadow: 0 8px 24px rgb(23 69 188 / 0.35);
}

#0047ab Cobalt Blue ΔE 3.33 #1c39bb Persian Blue ΔE 3.75 #0f52ba Sapphire ΔE 4.71 #1034a6 Egyptian Blue ΔE 5.60 #4f42b5 Ocean Blue ΔE 6.41 #003399 Smalt ΔE 6.81 #0f4d92 Yale Blue ΔE 7.58 #e8ba43 Inverted #505050 Grayscale 

Cobalt Blue
#1745bc  rgb(23, 69, 188)  hsl(223, 78%, 41%)  Cobalt Blue
#bc8e17  rgb(188, 142, 23)  hsl(43, 78%, 41%)  Dark Goldenrod
#bc1745  rgb(188, 23, 69)  hsl(343, 78%, 41%)  Cardinal
#45bc17  rgb(69, 188, 23)  hsl(103, 78%, 41%)  Kelly Green