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#557DFF

#557dff ≈ Brandeis Blue

  • blue
  • Lightness: high
  • Saturation: strong
  • Cool
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#557dff is a color from the blue family, with high lightness and strong saturation. In the RGB model it is made of 33.33% red, 49.02% green and 100% blue; printed in CMYK it uses 66.67% cyan, 50.98% magenta, 0% yellow and 0% black. Its hue angle is 225.88°, with 100% 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 5.76:1 (WCAG AA). The closest named color is Brandeis Blue (#0070ff), ΔE 6.01.

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 luminance0.2382

Complementary

  1. #557dff
  2. #ffd755

Split complementary

  1. #557dff
  2. #ff8255
  3. #d2ff55

Analogous

  1. #55d2ff
  2. #557dff
  3. #8255ff

Triadic

  1. #557dff
  2. #ff557d
  3. #7dff55

Tetradic

  1. #557dff
  2. #d755ff
  3. #ffd755
  4. #7dff55

Square

  1. #557dff
  2. #ff55d2
  3. #ffd755
  4. #55ff82

Monochromatic

  1. #002cbb
  2. #0943ff
  3. #557dff
  4. #a2b8ff
  5. #ebefff

Shades

#557dff mixed progressively with black.

  1. #557dff
  2. #4d71e6
  3. #4464cc
  4. #3c58b3
  5. #334b99
  6. #2b3f80
  7. #223266
  8. #1a264d
  9. #111933
  10. #090d1a
  11. #000000

Tints

#557dff mixed progressively with white.

  1. #557dff
  2. #668aff
  3. #7797ff
  4. #88a4ff
  5. #99b1ff
  6. #aabeff
  7. #bbcbff
  8. #ccd8ff
  9. #dde5ff
  10. #eef2ff
  11. #ffffff

Tones

#557dff mixed progressively with gray.

  1. #557dff
  2. #597df2
  3. #5e7ee6
  4. #627ed9
  5. #667ecc
  6. #6b7fc0
  7. #6f7fb3
  8. #737fa6
  9. #777f99
  10. #7c808d
  11. #808080

Readable text 3.64:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.76:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #868686 ≈ 0.003% of males
Achromatomaly #7582c3 ≈ 0.001% of males
Protanopia #2c8eff ≈ 1.01% of males
Deuteranopia #007ffc ≈ 1.27% of males
Tritanopia #009cb2 ≈ 0.0001% of males
Protanomaly #4088ff ≈ 1.08% of males
Deuteranomaly #2c7efd ≈ 4.63% of males
Tritanomaly #0090d5 ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-557dff {
  color: #557dff;
}
Background
.bg-557dff {
  background-color: #557dff;
  color: #000000;
}
Border
.border-557dff {
  border: 2px solid #557dff;
}
CSS variables
:root {
  --color-primary: #557dff;
  --color-primary-rgb: 85 125 255;
  --color-primary-hsl: 226 100% 67%;
}
Gradient
.gradient-557dff {
  background: linear-gradient(135deg, #557dff, #8255ff);
}
Colored shadow
.shadow-557dff {
  box-shadow: 0 8px 24px rgb(85 125 255 / 0.35);
}

#0070ff Brandeis Blue ΔE 6.01 #5b92e5 United Nations Blue ΔE 7.61 #6495ed Cornflower Blue ΔE 7.73 #6082b6 Glaucous ΔE 7.76 #4166f5 Ultramarine Blue ΔE 7.77 #4169e1 Royal Blue ΔE 8.07 #417dc1 Tufts Blue ΔE 8.68 #aa8200 Inverted #868686 Grayscale 

Brandeis Blue
#557dff  rgb(85, 125, 255)  hsl(226, 100%, 67%)  Brandeis Blue
#ffd755  rgb(255, 215, 85)  hsl(46, 100%, 67%)  Mustard
#ff557d  rgb(255, 85, 125)  hsl(346, 100%, 67%)  Neon Fuchsia
#7dff55  rgb(125, 255, 85)  hsl(106, 100%, 67%)  Neon Green