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#577BD1

#577bd1 ≈ Glaucous

  • blue
  • Lightness: medium
  • Saturation: moderate
  • Cool
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#577bd1 is a color from the blue family, with medium lightness and moderate saturation. In the RGB model it is made of 34.12% red, 48.24% green and 81.96% blue; printed in CMYK it uses 58.37% cyan, 41.15% magenta, 0% yellow and 18.04% black. Its hue angle is 222.3°, with 57.01% saturation and 58.04% 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 5.16:1 (WCAG AA). The closest named color is Glaucous (#6082b6), ΔE 3.88.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#6666cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.208

Complementary

  1. #577bd1
  2. #d1ad57

Split complementary

  1. #577bd1
  2. #d17057
  3. #b8d157

Analogous

  1. #57b8d1
  2. #577bd1
  3. #7057d1

Triadic

  1. #577bd1
  2. #d1577b
  3. #7bd157

Tetradic

  1. #577bd1
  2. #ad57d1
  3. #d1ad57
  4. #7bd157

Square

  1. #577bd1
  2. #d157b8
  3. #d1ad57
  4. #57d170

Monochromatic

  1. #1f3770
  2. #2f54ac
  3. #577bd1
  4. #93aae1
  5. #cfd9f2

Shades

#577bd1 mixed progressively with black.

  1. #577bd1
  2. #4e6fbc
  3. #4662a7
  4. #3d5692
  5. #344a7d
  6. #2c3e69
  7. #233154
  8. #1a253f
  9. #11192a
  10. #090c15
  11. #000000

Tints

#577bd1 mixed progressively with white.

  1. #577bd1
  2. #6888d6
  3. #7995da
  4. #89a3df
  5. #9ab0e3
  6. #abbde8
  7. #bccaed
  8. #cdd7f1
  9. #dde5f6
  10. #eef2fa
  11. #ffffff

Tones

#577bd1 mixed progressively with gray.

  1. #577bd1
  2. #5b7cc9
  3. #5f7cc1
  4. #637db9
  5. #677db1
  6. #6c7ea9
  7. #707ea0
  8. #747f98
  9. #787f90
  10. #7c8088
  11. #808080

Readable text 4.07:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.16:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #7e7e7e ≈ 0.003% of males
Achromatomaly #707da6 ≈ 0.001% of males
Protanopia #5684d4 ≈ 1.01% of males
Deuteranopia #4579cf ≈ 1.27% of males
Tritanopia #008e9c ≈ 0.0001% of males
Protanomaly #5680d3 ≈ 1.08% of males
Deuteranomaly #4d7ad0 ≈ 4.63% of males
Tritanomaly #3287b4 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-577bd1 {
  color: #577bd1;
}
Background
.bg-577bd1 {
  background-color: #577bd1;
  color: #000000;
}
Border
.border-577bd1 {
  border: 2px solid #577bd1;
}
CSS variables
:root {
  --color-primary: #577bd1;
  --color-primary-rgb: 87 123 209;
  --color-primary-hsl: 222 57% 58%;
}
Gradient
.gradient-577bd1 {
  background: linear-gradient(135deg, #577bd1, #7057d1);
}
Colored shadow
.shadow-577bd1 {
  box-shadow: 0 8px 24px rgb(87 123 209 / 0.35);
}

#6082b6 Glaucous ΔE 3.88 #417dc1 Tufts Blue ΔE 5.15 #0070ff Brandeis Blue ΔE 6.39 #4169e1 Royal Blue ΔE 6.40 #4682b4 Steel Blue ΔE 7.06 #0073cf True Blue ΔE 7.72 #4166f5 Ultramarine Blue ΔE 7.93 #a8842e Inverted #7e7e7e Grayscale 

Glaucous
#577bd1  rgb(87, 123, 209)  hsl(222, 57%, 58%)  Glaucous
#d1ad57  rgb(209, 173, 87)  hsl(42, 57%, 58%)  Metallic Gold
#d1577b  rgb(209, 87, 123)  hsl(342, 57%, 58%)  Blush
#7bd157  rgb(123, 209, 87)  hsl(102, 57%, 58%)  Pastel Green