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#577BE4

#577be4 ≈ Glaucous

  • blue
  • Lightness: medium
  • Saturation: strong
  • Cool
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#577be4 is a color from the blue family, with medium lightness and strong saturation. In the RGB model it is made of 34.12% red, 48.24% green and 89.41% blue; printed in CMYK it uses 61.84% cyan, 46.05% magenta, 0% yellow and 10.59% black. Its hue angle is 224.68°, with 72.31% saturation and 61.76% 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 5.36:1 (WCAG AA). The closest named color is Glaucous (#6082b6), ΔE 5.48.

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 luminance0.2179

Complementary

  1. #577be4
  2. #e4c057

Split complementary

  1. #577be4
  2. #e47957
  3. #c1e457

Analogous

  1. #57c1e4
  2. #577be4
  3. #7957e4

Triadic

  1. #577be4
  2. #e4577b
  3. #7be457

Tetradic

  1. #577be4
  2. #c057e4
  3. #e4c057
  4. #7be457

Square

  1. #577be4
  2. #e457c1
  3. #e4c057
  4. #57e479

Monochromatic

  1. #16348c
  2. #214dcd
  3. #577be4
  4. #99afef
  5. #dbe3f9

Shades

#577be4 mixed progressively with black.

  1. #577be4
  2. #4e6fcd
  3. #4662b6
  4. #3d56a0
  5. #344a89
  6. #2c3e72
  7. #23315b
  8. #1a2544
  9. #11192e
  10. #090c17
  11. #000000

Tints

#577be4 mixed progressively with white.

  1. #577be4
  2. #6888e7
  3. #7995e9
  4. #89a3ec
  5. #9ab0ef
  6. #abbdf2
  7. #bccaf4
  8. #cdd7f7
  9. #dde5fa
  10. #eef2fc
  11. #ffffff

Tones

#577be4 mixed progressively with gray.

  1. #577be4
  2. #5b7cda
  3. #5f7cd0
  4. #637dc6
  5. #677dbc
  6. #6c7eb2
  7. #707ea8
  8. #747f9e
  9. #787f94
  10. #7c808a
  11. #808080

Readable text 3.92:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.36:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #818181 ≈ 0.003% of males
Achromatomaly #727eb1 ≈ 0.001% of males
Protanopia #4887e8 ≈ 1.01% of males
Deuteranopia #2f7be2 ≈ 1.27% of males
Tritanopia #0093a4 ≈ 0.0001% of males
Protanomaly #4e83e6 ≈ 1.08% of males
Deuteranomaly #427be3 ≈ 4.63% of males
Tritanomaly #248ac1 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-577be4 {
  color: #577be4;
}
Background
.bg-577be4 {
  background-color: #577be4;
  color: #000000;
}
Border
.border-577be4 {
  border: 2px solid #577be4;
}
CSS variables
:root {
  --color-primary: #577be4;
  --color-primary-rgb: 87 123 228;
  --color-primary-hsl: 225 72% 62%;
}
Gradient
.gradient-577be4 {
  background: linear-gradient(135deg, #577be4, #7957e4);
}
Colored shadow
.shadow-577be4 {
  box-shadow: 0 8px 24px rgb(87 123 228 / 0.35);
}

#6082b6 Glaucous ΔE 5.48 #0070ff Brandeis Blue ΔE 5.60 #4169e1 Royal Blue ΔE 6.32 #417dc1 Tufts Blue ΔE 6.60 #4166f5 Ultramarine Blue ΔE 7.11 #5b92e5 United Nations Blue ΔE 7.86 #4682b4 Steel Blue ΔE 8.21 #a8841b Inverted #818181 Grayscale 

Glaucous
#577be4  rgb(87, 123, 228)  hsl(225, 72%, 62%)  Glaucous
#e4c057  rgb(228, 192, 87)  hsl(45, 72%, 62%)  Meat Brown
#e4577b  rgb(228, 87, 123)  hsl(345, 72%, 62%)  Blush
#7be457  rgb(123, 228, 87)  hsl(105, 72%, 62%)  Pastel Green