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#287CDF

#287cdf ≈ Tufts Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#287cdf is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 15.69% red, 48.63% green and 87.45% blue; printed in CMYK it uses 82.06% cyan, 44.39% magenta, 0% yellow and 12.55% black. Its hue angle is 212.46°, with 74.09% saturation and 51.57% 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. Black text on this color reaches a contrast ratio of 5.04:1 (WCAG AA). The closest named color is Tufts Blue (#417dc1), ΔE 2.76.

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 luminance0.2019

Complementary

  1. #287cdf
  2. #df8b28

Split complementary

  1. #287cdf
  2. #df3028
  3. #d7df28

Analogous

  1. #28d7df
  2. #287cdf
  3. #3028df

Triadic

  1. #287cdf
  2. #df287c
  3. #7cdf28

Tetradic

  1. #287cdf
  2. #8b28df
  3. #df8b28
  4. #7cdf28

Square

  1. #287cdf
  2. #df28d7
  3. #df8b28
  4. #28df30

Monochromatic

  1. #0e3460
  2. #1858a2
  3. #287cdf
  4. #6ba5e9
  5. #adcdf3

Shades

#287cdf mixed progressively with black.

  1. #287cdf
  2. #2470c9
  3. #2063b2
  4. #1c579c
  5. #184a86
  6. #143e70
  7. #103259
  8. #0c2543
  9. #08192d
  10. #040c16
  11. #000000

Tints

#287cdf mixed progressively with white.

  1. #287cdf
  2. #3e89e2
  3. #5396e5
  4. #69a3e9
  5. #7eb0ec
  6. #94beef
  7. #a9cbf2
  8. #bfd8f5
  9. #d4e5f9
  10. #eaf2fc
  11. #ffffff

Tones

#287cdf mixed progressively with gray.

  1. #287cdf
  2. #317cd6
  3. #3a7dcc
  4. #427dc3
  5. #4b7eb9
  6. #547eb0
  7. #5d7ea6
  8. #667f9d
  9. #6e7f93
  10. #77808a
  11. #808080

Readable text 4.17:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.04:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #7c7c7c ≈ 0.003% of males
Achromatomaly #657cad ≈ 0.001% of males
Protanopia #4885e3 ≈ 1.01% of males
Deuteranopia #1e75dd ≈ 1.27% of males
Tritanopia #0094a2 ≈ 0.0001% of males
Protanomaly #3d81e1 ≈ 1.08% of males
Deuteranomaly #2278de ≈ 4.63% of males
Tritanomaly #008bbe ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-287cdf {
  color: #287cdf;
}
Background
.bg-287cdf {
  background-color: #287cdf;
  color: #000000;
}
Border
.border-287cdf {
  border: 2px solid #287cdf;
}
CSS variables
:root {
  --color-primary: #287cdf;
  --color-primary-rgb: 40 124 223;
  --color-primary-hsl: 212 74% 52%;
}
Gradient
.gradient-287cdf {
  background: linear-gradient(135deg, #287cdf, #3028df);
}
Colored shadow
.shadow-287cdf {
  box-shadow: 0 8px 24px rgb(40 124 223 / 0.35);
}

#417dc1 Tufts Blue ΔE 2.76 #0073cf True Blue ΔE 4.21 #4682b4 Steel Blue ΔE 4.97 #0070ff Brandeis Blue ΔE 5.58 #318ce7 Bleu de France ΔE 5.64 #0072bb French Blue ΔE 6.54 #6082b6 Glaucous ΔE 6.55 #d78320 Inverted #7c7c7c Grayscale 

Tufts Blue
#287cdf  rgb(40, 124, 223)  hsl(212, 74%, 52%)  Tufts Blue
#df8b28  rgb(223, 139, 40)  hsl(32, 74%, 52%)  Fulvous
#df287c  rgb(223, 40, 124)  hsl(332, 74%, 52%)  Telemagenta
#7cdf28  rgb(124, 223, 40)  hsl(92, 74%, 52%)  Yellow Green