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#5566EA

#5566ea ≈ Ultramarine Blue

  • blue
  • Lightness: high
  • Saturation: strong
  • Cool
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#5566ea is a color from the blue family, with high lightness and strong saturation. In the RGB model it is made of 33.33% red, 40% green and 91.76% blue; printed in CMYK it uses 63.68% cyan, 56.41% magenta, 0% yellow and 8.24% black. Its hue angle is 233.15°, with 78.01% saturation and 62.55% 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. White text on this color reaches a contrast ratio of 4.69:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 2.28.

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 luminance0.1737

Complementary

  1. #5566ea
  2. #ead955

Split complementary

  1. #5566ea
  2. #ea8e55
  3. #b1ea55

Analogous

  1. #55b1ea
  2. #5566ea
  3. #8e55ea

Triadic

  1. #5566ea
  2. #ea5566
  3. #66ea55

Tetradic

  1. #5566ea
  2. #d955ea
  3. #ead955
  4. #66ea55

Square

  1. #5566ea
  2. #ea55b1
  3. #ead955
  4. #55ea8e

Monochromatic

  1. #122194
  2. #1b30d8
  3. #5566ea
  4. #99a3f2
  5. #dde1fb

Shades

#5566ea mixed progressively with black.

  1. #5566ea
  2. #4d5cd3
  3. #4452bb
  4. #3c47a4
  5. #333d8c
  6. #2b3375
  7. #22295e
  8. #1a1f46
  9. #11142f
  10. #090a17
  11. #000000

Tints

#5566ea mixed progressively with white.

  1. #5566ea
  2. #6675ec
  3. #7785ee
  4. #8894f0
  5. #99a3f2
  6. #aab3f5
  7. #bbc2f7
  8. #ccd1f9
  9. #dde0fb
  10. #eef0fd
  11. #ffffff

Tones

#5566ea mixed progressively with gray.

  1. #5566ea
  2. #5969df
  3. #5e6bd5
  4. #626eca
  5. #6670c0
  6. #6b73b5
  7. #6f76aa
  8. #7378a0
  9. #777b95
  10. #7c7d8b
  11. #808080

Readable text 4.69:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.47:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #747474 ≈ 0.003% of males
Achromatomaly #696eb0 ≈ 0.001% of males
Protanopia #007bee ≈ 1.01% of males
Deuteranopia #006de7 ≈ 1.27% of males
Tritanopia #00869e ≈ 0.0001% of males
Protanomaly #2e73ed ≈ 1.08% of males
Deuteranomaly #1d6ae8 ≈ 4.63% of males
Tritanomaly #1a7ac1 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-5566ea {
  color: #5566ea;
}
Background
.bg-5566ea {
  background-color: #5566ea;
  color: #ffffff;
}
Border
.border-5566ea {
  border: 2px solid #5566ea;
}
CSS variables
:root {
  --color-primary: #5566ea;
  --color-primary-rgb: 85 102 234;
  --color-primary-hsl: 233 78% 63%;
}
Gradient
.gradient-5566ea {
  background: linear-gradient(135deg, #5566ea, #8e55ea);
}
Colored shadow
.shadow-5566ea {
  box-shadow: 0 8px 24px rgb(85 102 234 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 2.28 #4169e1 Royal Blue ΔE 3.56 #7b68ee Medium Slate Blue ΔE 6.14 #6a5acd Slate Blue ΔE 6.76 #0070ff Brandeis Blue ΔE 6.90 #6050dc Majorelle Blue ΔE 7.42 #5a4fcf Iris ΔE 8.25 #aa9915 Inverted #747474 Grayscale 

Ultramarine Blue
#5566ea  rgb(85, 102, 234)  hsl(233, 78%, 63%)  Ultramarine Blue
#ead955  rgb(234, 217, 85)  hsl(53, 78%, 63%)  Straw
#ea5566  rgb(234, 85, 102)  hsl(353, 78%, 63%)  Neon Fuchsia
#66ea55  rgb(102, 234, 85)  hsl(113, 78%, 63%)  Malachite