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#1B57F3

#1b57f3 ≈ Ultramarine Blue

  • blue
  • Lightness: medium
  • Saturation: vivid
  • Cool
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#1b57f3 is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 10.59% red, 34.12% green and 95.29% blue; printed in CMYK it uses 88.89% cyan, 64.2% magenta, 0% yellow and 4.71% black. Its hue angle is 223.33°, with 90% saturation and 52.94% 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 call-to-action buttons. White text on this color reaches a contrast ratio of 5.67:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 5.07.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3366ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1352

Complementary

  1. #1b57f3
  2. #f3b71b

Split complementary

  1. #1b57f3
  2. #f34b1b
  3. #c3f31b

Analogous

  1. #1bc3f3
  2. #1b57f3
  3. #4b1bf3

Triadic

  1. #1b57f3
  2. #f31b57
  3. #57f31b

Tetradic

  1. #1b57f3
  2. #b71bf3
  3. #f3b71b
  4. #57f31b

Square

  1. #1b57f3
  2. #f31bc3
  3. #f3b71b
  4. #1bf34b

Monochromatic

  1. #06236f
  2. #0a3ab8
  3. #1b57f3
  4. #648df7
  5. #acc2fb

Shades

#1b57f3 mixed progressively with black.

  1. #1b57f3
  2. #184edb
  3. #1646c2
  4. #133daa
  5. #103492
  6. #0e2c7a
  7. #0b2361
  8. #081a49
  9. #051131
  10. #030918
  11. #000000

Tints

#1b57f3 mixed progressively with white.

  1. #1b57f3
  2. #3268f4
  3. #4979f5
  4. #5f89f7
  5. #769af8
  6. #8dabf9
  7. #a4bcfa
  8. #bbcdfb
  9. #d1ddfd
  10. #e8eefe
  11. #ffffff

Tones

#1b57f3 mixed progressively with gray.

  1. #1b57f3
  2. #255be8
  3. #2f5fdc
  4. #3963d1
  5. #4367c5
  6. #4e6cba
  7. #5870ae
  8. #6274a3
  9. #6c7897
  10. #767c8c
  11. #808080

Readable text 5.67:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 3.7:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #676767 ≈ 0.003% of males
Achromatomaly #5361b1 ≈ 0.001% of males
Protanopia #0071f8 ≈ 1.01% of males
Deuteranopia #005df0 ≈ 1.27% of males
Tritanopia #00819d ≈ 0.0001% of males
Protanomaly #0068f6 ≈ 1.08% of males
Deuteranomaly #005bf1 ≈ 4.63% of males
Tritanomaly #0073c5 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-1b57f3 {
  color: #1b57f3;
}
Background
.bg-1b57f3 {
  background-color: #1b57f3;
  color: #ffffff;
}
Border
.border-1b57f3 {
  border: 2px solid #1b57f3;
}
CSS variables
:root {
  --color-primary: #1b57f3;
  --color-primary-rgb: 27 87 243;
  --color-primary-hsl: 223 90% 53%;
}
Gradient
.gradient-1b57f3 {
  background: linear-gradient(135deg, #1b57f3, #4b1bf3);
}
Colored shadow
.shadow-1b57f3 {
  box-shadow: 0 8px 24px rgb(27 87 243 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 5.07 #4169e1 Royal Blue ΔE 5.93 #6050dc Majorelle Blue ΔE 6.95 #5a4fcf Iris ΔE 7.20 #0f52ba Sapphire ΔE 7.91 #1560bd Denim ΔE 8.42 #0070ff Brandeis Blue ΔE 8.63 #e4a80c Inverted #676767 Grayscale 

Ultramarine Blue
#1b57f3  rgb(27, 87, 243)  hsl(223, 90%, 53%)  Ultramarine Blue
#f3b71b  rgb(243, 183, 27)  hsl(43, 90%, 53%)  Amber
#f31b57  rgb(243, 27, 87)  hsl(343, 90%, 53%)  Amaranth
#57f31b  rgb(87, 243, 27)  hsl(103, 90%, 53%)  Harlequin