ColorTool
Log in
#577AF9

#577af9 ≈ Brandeis Blue

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

#577af9 is a color from the blue family, with high lightness and strong saturation. In the RGB model it is made of 34.12% red, 47.84% green and 97.65% blue; printed in CMYK it uses 65.06% cyan, 51% magenta, 0% yellow and 2.35% black. Its hue angle is 227.04°, with 93.1% saturation and 65.88% 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 5.56:1 (WCAG AA). The closest named color is Brandeis Blue (#0070ff), ΔE 5.59.

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 luminance0.2278

Complementary

  1. #577af9
  2. #f9d657

Split complementary

  1. #577af9
  2. #f98557
  3. #cbf957

Analogous

  1. #57cbf9
  2. #577af9
  3. #8557f9

Triadic

  1. #577af9
  2. #f9577a
  3. #7af957

Tetradic

  1. #577af9
  2. #d657f9
  3. #f9d657
  4. #7af957

Square

  1. #577af9
  2. #f957cb
  3. #f9d657
  4. #57f985

Monochromatic

  1. #062bb1
  2. #0d40f6
  3. #577af9
  4. #a1b4fc
  5. #ebeffe

Shades

#577af9 mixed progressively with black.

  1. #577af9
  2. #4e6ee0
  3. #4662c7
  4. #3d55ae
  5. #344995
  6. #2c3d7d
  7. #233164
  8. #1a254b
  9. #111832
  10. #090c19
  11. #000000

Tints

#577af9 mixed progressively with white.

  1. #577af9
  2. #6887fa
  3. #7995fa
  4. #89a2fb
  5. #9aaffb
  6. #abbdfc
  7. #bccafd
  8. #cdd7fd
  9. #dde4fe
  10. #eef2fe
  11. #ffffff

Tones

#577af9 mixed progressively with gray.

  1. #577af9
  2. #5b7bed
  3. #5f7be1
  4. #637cd5
  5. #677cc9
  6. #6c7dbd
  7. #707eb0
  8. #747ea4
  9. #787f98
  10. #7c7f8c
  11. #808080

Readable text 3.78:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.56:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #838383 ≈ 0.003% of males
Achromatomaly #7480be ≈ 0.001% of males
Protanopia #2c8bfe ≈ 1.01% of males
Deuteranopia #007cf6 ≈ 1.27% of males
Tritanopia #0098ae ≈ 0.0001% of males
Protanomaly #4184fc ≈ 1.08% of males
Deuteranomaly #307bf7 ≈ 4.63% of males
Tritanomaly #008dd0 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-577af9 {
  color: #577af9;
}
Background
.bg-577af9 {
  background-color: #577af9;
  color: #000000;
}
Border
.border-577af9 {
  border: 2px solid #577af9;
}
CSS variables
:root {
  --color-primary: #577af9;
  --color-primary-rgb: 87 122 249;
  --color-primary-hsl: 227 93% 66%;
}
Gradient
.gradient-577af9 {
  background: linear-gradient(135deg, #577af9, #8557f9);
}
Colored shadow
.shadow-577af9 {
  box-shadow: 0 8px 24px rgb(87 122 249 / 0.35);
}

#0070ff Brandeis Blue ΔE 5.59 #4166f5 Ultramarine Blue ΔE 6.73 #4169e1 Royal Blue ΔE 6.99 #6082b6 Glaucous ΔE 7.52 #5b92e5 United Nations Blue ΔE 8.48 #417dc1 Tufts Blue ΔE 8.56 #6495ed Cornflower Blue ΔE 8.67 #a88506 Inverted #838383 Grayscale 

Brandeis Blue
#577af9  rgb(87, 122, 249)  hsl(227, 93%, 66%)  Brandeis Blue
#f9d657  rgb(249, 214, 87)  hsl(47, 93%, 66%)  Naples Yellow
#f9577a  rgb(249, 87, 122)  hsl(347, 93%, 66%)  Neon Fuchsia
#7af957  rgb(122, 249, 87)  hsl(107, 93%, 66%)  Neon Green