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#556DFD

#556dfd ≈ Ultramarine Blue

  • blue
  • Lightness: high
  • Saturation: strong
  • Cool
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#556dfd is a color from the blue family, with high lightness and strong saturation. In the RGB model it is made of 33.33% red, 42.75% green and 99.22% blue; printed in CMYK it uses 66.4% cyan, 56.92% magenta, 0% yellow and 0.78% black. Its hue angle is 231.43°, with 97.67% saturation and 66.27% 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 4.99:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 3.38.

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 luminance0.1996

Complementary

  1. #556dfd
  2. #fde555

Split complementary

  1. #556dfd
  2. #fd9155
  3. #c1fd55

Analogous

  1. #55c1fd
  2. #556dfd
  3. #9155fd

Triadic

  1. #556dfd
  2. #fd556d
  3. #6dfd55

Tetradic

  1. #556dfd
  2. #e555fd
  3. #fde555
  4. #6dfd55

Square

  1. #556dfd
  2. #fd55c1
  3. #fde555
  4. #55fd91

Monochromatic

  1. #021cb7
  2. #092cfc
  3. #556dfd
  4. #a1aefe
  5. #ebeeff

Shades

#556dfd mixed progressively with black.

  1. #556dfd
  2. #4d62e4
  3. #4457ca
  4. #3c4cb1
  5. #334198
  6. #2b377f
  7. #222c65
  8. #1a214c
  9. #111633
  10. #090b19
  11. #000000

Tints

#556dfd mixed progressively with white.

  1. #556dfd
  2. #667cfd
  3. #778afd
  4. #8899fe
  5. #99a7fe
  6. #aab6fe
  7. #bbc5fe
  8. #ccd3fe
  9. #dde2ff
  10. #eef0ff
  11. #ffffff

Tones

#556dfd mixed progressively with gray.

  1. #556dfd
  2. #596ff1
  3. #5e71e4
  4. #6273d8
  5. #6675cb
  6. #6b77bf
  7. #6f78b2
  8. #737aa6
  9. #777c99
  10. #7c7e8d
  11. #808080

Readable text 4.21:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 4.99:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #7b7b7b ≈ 0.003% of males
Achromatomaly #6e76be ≈ 0.001% of males
Protanopia #0083ff ≈ 1.01% of males
Deuteranopia #0074fa ≈ 1.27% of males
Tritanopia #0090ab ≈ 0.0001% of males
Protanomaly #277bff ≈ 1.08% of males
Deuteranomaly #0371fb ≈ 4.63% of males
Tritanomaly #0084d1 ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-556dfd {
  color: #556dfd;
}
Background
.bg-556dfd {
  background-color: #556dfd;
  color: #000000;
}
Border
.border-556dfd {
  border: 2px solid #556dfd;
}
CSS variables
:root {
  --color-primary: #556dfd;
  --color-primary-rgb: 85 109 253;
  --color-primary-hsl: 231 98% 66%;
}
Gradient
.gradient-556dfd {
  background: linear-gradient(135deg, #556dfd, #9155fd);
}
Colored shadow
.shadow-556dfd {
  box-shadow: 0 8px 24px rgb(85 109 253 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 3.38 #4169e1 Royal Blue ΔE 5.09 #0070ff Brandeis Blue ΔE 5.73 #7b68ee Medium Slate Blue ΔE 6.26 #6a5acd Slate Blue ΔE 9.72 #6082b6 Glaucous ΔE 9.88 #6050dc Majorelle Blue ΔE 10.38 #aa9202 Inverted #7b7b7b Grayscale 

Ultramarine Blue
#556dfd  rgb(85, 109, 253)  hsl(231, 98%, 66%)  Ultramarine Blue
#fde555  rgb(253, 229, 85)  hsl(51, 98%, 66%)  Banana Yellow
#fd556d  rgb(253, 85, 109)  hsl(351, 98%, 66%)  Neon Fuchsia
#6dfd55  rgb(109, 253, 85)  hsl(111, 98%, 66%)  Neon Green