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#577BE9

#577be9 ≈ Brandeis Blue

  • blue
  • Lightness: high
  • Saturation: strong
  • Cool
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#577be9 is a color from the blue family, with high lightness and strong saturation. In the RGB model it is made of 34.12% red, 48.24% green and 91.37% blue; printed in CMYK it uses 62.66% cyan, 47.21% magenta, 0% yellow and 8.63% black. Its hue angle is 225.21°, with 76.84% saturation and 62.75% 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. Black text on this color reaches a contrast ratio of 5.42:1 (WCAG AA). The closest named color is Brandeis Blue (#0070ff), ΔE 5.51.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#6666ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.2208

Complementary

  1. #577be9
  2. #e9c557

Split complementary

  1. #577be9
  2. #e97c57
  3. #c4e957

Analogous

  1. #57c4e9
  2. #577be9
  3. #7c57e9

Triadic

  1. #577be9
  2. #e9577b
  3. #7be957

Tetradic

  1. #577be9
  2. #c557e9
  3. #e9c557
  4. #7be957

Square

  1. #577be9
  2. #e957c4
  3. #e9c557
  4. #57e97c

Monochromatic

  1. #133394
  2. #1c4ad7
  3. #577be9
  4. #9bb0f2
  5. #dee5fb

Shades

#577be9 mixed progressively with black.

  1. #577be9
  2. #4e6fd2
  3. #4662ba
  4. #3d56a3
  5. #344a8c
  6. #2c3e75
  7. #23315d
  8. #1a2546
  9. #11192f
  10. #090c17
  11. #000000

Tints

#577be9 mixed progressively with white.

  1. #577be9
  2. #6888eb
  3. #7995ed
  4. #89a3f0
  5. #9ab0f2
  6. #abbdf4
  7. #bccaf6
  8. #cdd7f8
  9. #dde5fb
  10. #eef2fd
  11. #ffffff

Tones

#577be9 mixed progressively with gray.

  1. #577be9
  2. #5b7cdf
  3. #5f7cd4
  4. #637dca
  5. #677dbf
  6. #6c7eb5
  7. #707eaa
  8. #747fa0
  9. #787f95
  10. #7c808b
  11. #808080

Readable text 3.88:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.42:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #818181 ≈ 0.003% of males
Achromatomaly #737fb4 ≈ 0.001% of males
Protanopia #4388ed ≈ 1.01% of males
Deuteranopia #267be7 ≈ 1.27% of males
Tritanopia #0094a7 ≈ 0.0001% of males
Protanomaly #4c83eb ≈ 1.08% of males
Deuteranomaly #3f7be8 ≈ 4.63% of males
Tritanomaly #1f8bc5 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-577be9 {
  color: #577be9;
}
Background
.bg-577be9 {
  background-color: #577be9;
  color: #000000;
}
Border
.border-577be9 {
  border: 2px solid #577be9;
}
CSS variables
:root {
  --color-primary: #577be9;
  --color-primary-rgb: 87 123 233;
  --color-primary-hsl: 225 77% 63%;
}
Gradient
.gradient-577be9 {
  background: linear-gradient(135deg, #577be9, #7c57e9);
}
Colored shadow
.shadow-577be9 {
  box-shadow: 0 8px 24px rgb(87 123 233 / 0.35);
}

#0070ff Brandeis Blue ΔE 5.51 #6082b6 Glaucous ΔE 5.94 #4169e1 Royal Blue ΔE 6.45 #4166f5 Ultramarine Blue ΔE 7.00 #417dc1 Tufts Blue ΔE 7.03 #5b92e5 United Nations Blue ΔE 7.88 #6495ed Cornflower Blue ΔE 8.33 #a88416 Inverted #818181 Grayscale 

Brandeis Blue
#577be9  rgb(87, 123, 233)  hsl(225, 77%, 63%)  Brandeis Blue
#e9c557  rgb(233, 197, 87)  hsl(45, 77%, 63%)  Meat Brown
#e9577b  rgb(233, 87, 123)  hsl(345, 77%, 63%)  Blush
#7be957  rgb(123, 233, 87)  hsl(105, 77%, 63%)  Pastel Green