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#577B9C

#577b9c ≈ Steel Blue

  • azure
  • Lightness: medium
  • Saturation: moderate
  • Cool
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#577b9c is a color from the azure family, with medium lightness and moderate saturation. In the RGB model it is made of 34.12% red, 48.24% green and 61.18% blue; printed in CMYK it uses 44.23% cyan, 21.15% magenta, 0% yellow and 38.82% black. Its hue angle is 208.7°, with 28.4% saturation and 47.65% lightness in HSL. It is a cool color, often associated with openness, freedom and calm. Designers typically use it for technology products, finance and banking and brand accents. Black text on this color reaches a contrast ratio of 4.72:1 (WCAG AA). The closest named color is Steel Blue (#4682b4), ΔE 4.85.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#666699
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1859

Complementary

  1. #577b9c
  2. #9c7857

Split complementary

  1. #577b9c
  2. #9c5758
  3. #9c9b57

Analogous

  1. #579c9b
  2. #577b9c
  3. #57589c

Triadic

  1. #577b9c
  2. #9c577b
  3. #7b9c57

Tetradic

  1. #577b9c
  2. #78579c
  3. #9c7857
  4. #7b9c57

Square

  1. #577b9c
  2. #9b579c
  3. #9c7857
  4. #589c57

Monochromatic

  1. #202e3a
  2. #3c546b
  3. #577b9c
  4. #85a1bb
  5. #b6c7d6

Shades

#577b9c mixed progressively with black.

  1. #577b9c
  2. #4e6f8c
  3. #46627d
  4. #3d566d
  5. #344a5e
  6. #2c3e4e
  7. #23313e
  8. #1a252f
  9. #11191f
  10. #090c10
  11. #000000

Tints

#577b9c mixed progressively with white.

  1. #577b9c
  2. #6888a6
  3. #7995b0
  4. #89a3ba
  5. #9ab0c4
  6. #abbdce
  7. #bccad7
  8. #cdd7e1
  9. #dde5eb
  10. #eef2f5
  11. #ffffff

Tones

#577b9c mixed progressively with gray.

  1. #577b9c
  2. #5b7c99
  3. #5f7c96
  4. #637d94
  5. #677d91
  6. #6c7e8e
  7. #707e8b
  8. #747f88
  9. #787f86
  10. #7c8083
  11. #808080

Readable text 4.45:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 4.72:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #777777 ≈ 0.003% of males
Achromatomaly #6c7988 ≈ 0.001% of males
Protanopia #6e7b9e ≈ 1.01% of males
Deuteranopia #65749b ≈ 1.27% of males
Tritanopia #3c8386 ≈ 0.0001% of males
Protanomaly #657b9d ≈ 1.08% of males
Deuteranomaly #60779c ≈ 4.63% of males
Tritanomaly #48808f ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-577b9c {
  color: #577b9c;
}
Background
.bg-577b9c {
  background-color: #577b9c;
  color: #000000;
}
Border
.border-577b9c {
  border: 2px solid #577b9c;
}
CSS variables
:root {
  --color-primary: #577b9c;
  --color-primary-rgb: 87 123 156;
  --color-primary-hsl: 209 28% 48%;
}
Gradient
.gradient-577b9c {
  background: linear-gradient(135deg, #577b9c, #57589c);
}
Colored shadow
.shadow-577b9c {
  box-shadow: 0 8px 24px rgb(87 123 156 / 0.35);
}

#4682b4 Steel Blue ΔE 4.85 #6082b6 Glaucous ΔE 5.49 #417dc1 Tufts Blue ΔE 5.55 #5d8aa8 Air Force Blue ΔE 6.00 #436b95 Queen Blue ΔE 6.47 #708090 Slate Gray ΔE 6.93 #708090 Slate Grey ΔE 6.93 #a88463 Inverted #777777 Grayscale 

Steel Blue
#577b9c  rgb(87, 123, 156)  hsl(209, 28%, 48%)  Steel Blue
#9c7857  rgb(156, 120, 87)  hsl(29, 28%, 48%)  Cafe au Lait
#9c577b  rgb(156, 87, 123)  hsl(329, 28%, 48%)  Twilight Lavender
#7b9c57  rgb(123, 156, 87)  hsl(89, 28%, 48%)  Moss Green