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#4273CB

#4273cb ≈ Tufts Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#4273cb is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 25.88% red, 45.1% green and 79.61% blue; printed in CMYK it uses 67.49% cyan, 43.35% magenta, 0% yellow and 20.39% black. Its hue angle is 218.54°, with 56.85% saturation and 52.75% 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 4.36.

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 luminance0.1773

Complementary

  1. #4273cb
  2. #cb9a42

Split complementary

  1. #4273cb
  2. #cb5642
  3. #b8cb42

Analogous

  1. #42b8cb
  2. #4273cb
  3. #5642cb

Triadic

  1. #4273cb
  2. #cb4273
  3. #73cb42

Tetradic

  1. #4273cb
  2. #9a42cb
  3. #cb9a42
  4. #73cb42

Square

  1. #4273cb
  2. #cb42b8
  3. #cb9a42
  4. #42cb56

Monochromatic

  1. #19315b
  2. #2a5197
  3. #4273cb
  4. #7e9fdc
  5. #baccec

Shades

#4273cb mixed progressively with black.

  1. #4273cb
  2. #3b68b7
  3. #355ca2
  4. #2e518e
  5. #28457a
  6. #213a66
  7. #1a2e51
  8. #14233d
  9. #0d1729
  10. #070c14
  11. #000000

Tints

#4273cb mixed progressively with white.

  1. #4273cb
  2. #5581d0
  3. #688fd5
  4. #7b9ddb
  5. #8eabe0
  6. #a1b9e5
  7. #b3c7ea
  8. #c6d5ef
  9. #d9e3f5
  10. #ecf1fa
  11. #ffffff

Tones

#4273cb mixed progressively with gray.

  1. #4273cb
  2. #4874c4
  3. #4e76bc
  4. #5577b5
  5. #5b78ad
  6. #617aa6
  7. #677b9e
  8. #6d7c97
  9. #747d8f
  10. #7a7f88
  11. #808080

Readable text 4.62:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.55:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #757575 ≈ 0.003% of males
Achromatomaly #64749f ≈ 0.001% of males
Protanopia #497cce ≈ 1.01% of males
Deuteranopia #326fc9 ≈ 1.27% of males
Tritanopia #008795 ≈ 0.0001% of males
Protanomaly #4678cd ≈ 1.08% of males
Deuteranomaly #3971ca ≈ 4.63% of males
Tritanomaly #0080ad ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-4273cb {
  color: #4273cb;
}
Background
.bg-4273cb {
  background-color: #4273cb;
  color: #ffffff;
}
Border
.border-4273cb {
  border: 2px solid #4273cb;
}
CSS variables
:root {
  --color-primary: #4273cb;
  --color-primary-rgb: 66 115 203;
  --color-primary-hsl: 219 57% 53%;
}
Gradient
.gradient-4273cb {
  background: linear-gradient(135deg, #4273cb, #5642cb);
}
Colored shadow
.shadow-4273cb {
  box-shadow: 0 8px 24px rgb(66 115 203 / 0.35);
}

#417dc1 Tufts Blue ΔE 4.36 #0073cf True Blue ΔE 4.60 #4169e1 Royal Blue ΔE 4.74 #0070ff Brandeis Blue ΔE 5.32 #6082b6 Glaucous ΔE 6.19 #0072bb French Blue ΔE 6.72 #436b95 Queen Blue ΔE 6.86 #bd8c34 Inverted #757575 Grayscale 

Tufts Blue
#4273cb  rgb(66, 115, 203)  hsl(219, 57%, 53%)  Tufts Blue
#cb9a42  rgb(203, 154, 66)  hsl(39, 57%, 53%)  Indian Yellow
#cb4273  rgb(203, 66, 115)  hsl(339, 57%, 53%)  Telemagenta
#73cb42  rgb(115, 203, 66)  hsl(99, 57%, 53%)  Lime Green