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#3378BB

#3378bb ≈ Tufts Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#3378bb is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 20% red, 47.06% green and 73.33% blue; printed in CMYK it uses 72.73% cyan, 35.83% magenta, 0% yellow and 26.67% black. Its hue angle is 209.56°, with 57.14% saturation and 46.67% 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 4.62:1 (WCAG AA). The closest named color is Tufts Blue (#417dc1), ΔE 2.47.

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 luminance0.1772

Complementary

  1. #3378bb
  2. #bb7633

Split complementary

  1. #3378bb
  2. #bb3334
  3. #bbba33

Analogous

  1. #33bbba
  2. #3378bb
  3. #3334bb

Triadic

  1. #3378bb
  2. #bb3378
  3. #78bb33

Tetradic

  1. #3378bb
  2. #7633bb
  3. #bb7633
  4. #78bb33

Square

  1. #3378bb
  2. #ba33bb
  3. #bb7633
  4. #34bb33

Monochromatic

  1. #122b43
  2. #23517f
  3. #3378bb
  4. #659ed5
  5. #a2c4e6

Shades

#3378bb mixed progressively with black.

  1. #3378bb
  2. #2e6ca8
  3. #296096
  4. #245483
  5. #1f4870
  6. #1a3c5e
  7. #14304b
  8. #0f2438
  9. #0a1825
  10. #050c13
  11. #000000

Tints

#3378bb mixed progressively with white.

  1. #3378bb
  2. #4786c2
  3. #5c93c9
  4. #70a1cf
  5. #85aed6
  6. #99bcdd
  7. #adc9e4
  8. #c2d7eb
  9. #d6e4f1
  10. #ebf2f8
  11. #ffffff

Tones

#3378bb mixed progressively with gray.

  1. #3378bb
  2. #3b79b5
  3. #427aaf
  4. #4a7aa9
  5. #527ba3
  6. #5a7c9e
  7. #617d98
  8. #697e92
  9. #717e8c
  10. #787f86
  11. #808080

Readable text 4.62:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.54:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #757575 ≈ 0.003% of males
Achromatomaly #617696 ≈ 0.001% of males
Protanopia #597cbe ≈ 1.01% of males
Deuteranopia #466fba ≈ 1.27% of males
Tritanopia #008891 ≈ 0.0001% of males
Protanomaly #4d7abd ≈ 1.08% of males
Deuteranomaly #3f73ba ≈ 4.63% of males
Tritanomaly #0082a3 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-3378bb {
  color: #3378bb;
}
Background
.bg-3378bb {
  background-color: #3378bb;
  color: #ffffff;
}
Border
.border-3378bb {
  border: 2px solid #3378bb;
}
CSS variables
:root {
  --color-primary: #3378bb;
  --color-primary-rgb: 51 120 187;
  --color-primary-hsl: 210 57% 47%;
}
Gradient
.gradient-3378bb {
  background: linear-gradient(135deg, #3378bb, #3334bb);
}
Colored shadow
.shadow-3378bb {
  box-shadow: 0 8px 24px rgb(51 120 187 / 0.35);
}

#417dc1 Tufts Blue ΔE 2.47 #0073cf True Blue ΔE 2.55 #0072bb French Blue ΔE 3.14 #4682b4 Steel Blue ΔE 4.10 #436b95 Queen Blue ΔE 6.54 #6082b6 Glaucous ΔE 6.90 #0067a5 Medium Persian Blue ΔE 7.07 #cc8744 Inverted #757575 Grayscale 

Tufts Blue
#3378bb  rgb(51, 120, 187)  hsl(210, 57%, 47%)  Tufts Blue
#bb7633  rgb(187, 118, 51)  hsl(30, 57%, 47%)  Copper
#bb3378  rgb(187, 51, 120)  hsl(330, 57%, 47%)  Medium Violet Red
#78bb33  rgb(120, 187, 51)  hsl(90, 57%, 47%)  Kelly Green