ColorTool
Log in
#577EFD

#577efd ≈ Brandeis Blue

  • blue
  • Lightness: high
  • Saturation: strong
  • Cool
Check contrast Explore in graph Random color

#577efd is a color from the blue family, with high lightness and strong saturation. In the RGB model it is made of 34.12% red, 49.41% green and 99.22% blue; printed in CMYK it uses 65.61% cyan, 50.2% magenta, 0% yellow and 0.78% black. Its hue angle is 225.9°, with 97.65% saturation and 66.67% 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. Black text on this color reaches a contrast ratio of 5.81:1 (WCAG AA). The closest named color is Brandeis Blue (#0070ff), ΔE 6.26.

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 luminance0.2404

Complementary

  1. #577efd
  2. #fdd657

Split complementary

  1. #577efd
  2. #fd8357
  3. #d1fd57

Analogous

  1. #57d1fd
  2. #577efd
  3. #8357fd

Triadic

  1. #577efd
  2. #fd577e
  3. #7efd57

Tetradic

  1. #577efd
  2. #d657fd
  3. #fdd657
  4. #7efd57

Square

  1. #577efd
  2. #fd57d1
  3. #fdd657
  4. #57fd83

Monochromatic

  1. #022db9
  2. #0b44fc
  3. #577efd
  4. #a3b8fe
  5. #ebf0ff

Shades

#577efd mixed progressively with black.

  1. #577efd
  2. #4e71e4
  3. #4665ca
  4. #3d58b1
  5. #344c98
  6. #2c3f7f
  7. #233265
  8. #1a264c
  9. #111933
  10. #090d19
  11. #000000

Tints

#577efd mixed progressively with white.

  1. #577efd
  2. #688bfd
  3. #7998fd
  4. #89a5fe
  5. #9ab2fe
  6. #abbffe
  7. #bccbfe
  8. #cdd8fe
  9. #dde5ff
  10. #eef2ff
  11. #ffffff

Tones

#577efd mixed progressively with gray.

  1. #577efd
  2. #5b7ef1
  3. #5f7ee4
  4. #637fd8
  5. #677fcb
  6. #6c7fbf
  7. #707fb2
  8. #747fa6
  9. #788099
  10. #7c808d
  11. #808080

Readable text 3.62:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.81:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #878787 ≈ 0.003% of males
Achromatomaly #7683c2 ≈ 0.001% of males
Protanopia #338eff ≈ 1.01% of males
Deuteranopia #007ffa ≈ 1.27% of males
Tritanopia #009cb2 ≈ 0.0001% of males
Protanomaly #4488ff ≈ 1.08% of males
Deuteranomaly #337ffb ≈ 4.63% of males
Tritanomaly #0091d4 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-577efd {
  color: #577efd;
}
Background
.bg-577efd {
  background-color: #577efd;
  color: #000000;
}
Border
.border-577efd {
  border: 2px solid #577efd;
}
CSS variables
:root {
  --color-primary: #577efd;
  --color-primary-rgb: 87 126 253;
  --color-primary-hsl: 226 98% 67%;
}
Gradient
.gradient-577efd {
  background: linear-gradient(135deg, #577efd, #8357fd);
}
Colored shadow
.shadow-577efd {
  box-shadow: 0 8px 24px rgb(87 126 253 / 0.35);
}

#0070ff Brandeis Blue ΔE 6.26 #5b92e5 United Nations Blue ΔE 7.33 #6495ed Cornflower Blue ΔE 7.42 #6082b6 Glaucous ΔE 7.57 #4166f5 Ultramarine Blue ΔE 8.05 #4169e1 Royal Blue ΔE 8.26 #417dc1 Tufts Blue ΔE 8.62 #a88102 Inverted #878787 Grayscale 

Brandeis Blue
#577efd  rgb(87, 126, 253)  hsl(226, 98%, 67%)  Brandeis Blue
#fdd657  rgb(253, 214, 87)  hsl(46, 98%, 67%)  Mustard
#fd577e  rgb(253, 87, 126)  hsl(346, 98%, 67%)  Neon Fuchsia
#7efd57  rgb(126, 253, 87)  hsl(106, 98%, 67%)  Neon Green