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#366FDB

#366fdb ≈ Royal Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#366fdb is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 21.18% red, 43.53% green and 85.88% blue; printed in CMYK it uses 75.34% cyan, 49.32% magenta, 0% yellow and 14.12% black. Its hue angle is 219.27°, with 69.62% saturation and 53.53% 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. White text on this color reaches a contrast ratio of 4.72:1 (WCAG AA). The closest named color is Royal Blue (#4169e1), ΔE 3.15.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3366cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1727

Complementary

  1. #366fdb
  2. #dba236

Split complementary

  1. #366fdb
  2. #db4f36
  3. #c2db36

Analogous

  1. #36c2db
  2. #366fdb
  3. #4f36db

Triadic

  1. #366fdb
  2. #db366f
  3. #6fdb36

Tetradic

  1. #366fdb
  2. #a236db
  3. #dba236
  4. #6fdb36

Square

  1. #366fdb
  2. #db36c2
  3. #dba236
  4. #36db4f

Monochromatic

  1. #122f66
  2. #1e4da7
  3. #366fdb
  4. #779de7
  5. #b8ccf2

Shades

#366fdb mixed progressively with black.

  1. #366fdb
  2. #3164c5
  3. #2b59af
  4. #264e99
  5. #204383
  6. #1b386e
  7. #162c58
  8. #102142
  9. #0b162c
  10. #050b16
  11. #000000

Tints

#366fdb mixed progressively with white.

  1. #366fdb
  2. #4a7ddf
  3. #5e8ce2
  4. #729ae6
  5. #86a9e9
  6. #9bb7ed
  7. #afc5f1
  8. #c3d4f4
  9. #d7e2f8
  10. #ebf1fb
  11. #ffffff

Tones

#366fdb mixed progressively with gray.

  1. #366fdb
  2. #3d71d2
  3. #4572c9
  4. #4c74c0
  5. #5476b7
  6. #5b78ae
  7. #6279a4
  8. #6a7b9b
  9. #717d92
  10. #797e89
  11. #808080

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

Achromatopsia #737373 ≈ 0.003% of males
Achromatomaly #6172a7 ≈ 0.001% of males
Protanopia #2e7bdf ≈ 1.01% of males
Deuteranopia #006cd9 ≈ 1.27% of males
Tritanopia #00899a ≈ 0.0001% of males
Protanomaly #3277dd ≈ 1.08% of males
Deuteranomaly #166dda ≈ 4.63% of males
Tritanomaly #007fb8 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-366fdb {
  color: #366fdb;
}
Background
.bg-366fdb {
  background-color: #366fdb;
  color: #ffffff;
}
Border
.border-366fdb {
  border: 2px solid #366fdb;
}
CSS variables
:root {
  --color-primary: #366fdb;
  --color-primary-rgb: 54 111 219;
  --color-primary-hsl: 219 70% 54%;
}
Gradient
.gradient-366fdb {
  background: linear-gradient(135deg, #366fdb, #4f36db);
}
Colored shadow
.shadow-366fdb {
  box-shadow: 0 8px 24px rgb(54 111 219 / 0.35);
}

#4169e1 Royal Blue ΔE 3.15 #0070ff Brandeis Blue ΔE 3.77 #0073cf True Blue ΔE 5.15 #4166f5 Ultramarine Blue ΔE 5.43 #417dc1 Tufts Blue ΔE 5.86 #1560bd Denim ΔE 6.86 #0072bb French Blue ΔE 7.47 #c99024 Inverted #737373 Grayscale 

Royal Blue
#366fdb  rgb(54, 111, 219)  hsl(219, 70%, 54%)  Royal Blue
#dba236  rgb(219, 162, 54)  hsl(39, 70%, 54%)  Goldenrod
#db366f  rgb(219, 54, 111)  hsl(339, 70%, 54%)  Razzmatazz
#6fdb36  rgb(111, 219, 54)  hsl(99, 70%, 54%)  Lime Green