ColorTool
Log in
#287CDE

#287cde ≈ Tufts Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
Check contrast Explore in graph Random color

#287cde 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 87.06% blue; printed in CMYK it uses 81.98% cyan, 44.14% magenta, 0% yellow and 12.94% black. Its hue angle is 212.31°, with 73.39% saturation and 51.37% 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 5.03:1 (WCAG AA). The closest named color is Tufts Blue (#417dc1), ΔE 2.67.

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 luminance0.2014

Complementary

  1. #287cde
  2. #de8a28

Split complementary

  1. #287cde
  2. #de2f28
  3. #d7de28

Analogous

  1. #28d7de
  2. #287cde
  3. #2f28de

Triadic

  1. #287cde
  2. #de287c
  3. #7cde28

Tetradic

  1. #287cde
  2. #8a28de
  3. #de8a28
  4. #7cde28

Square

  1. #287cde
  2. #de28d7
  3. #de8a28
  4. #28de2f

Monochromatic

  1. #0f335e
  2. #1958a1
  3. #287cde
  4. #6aa4e8
  5. #adcdf2

Shades

#287cde mixed progressively with black.

  1. #287cde
  2. #2470c8
  3. #2063b2
  4. #1c579b
  5. #184a85
  6. #143e6f
  7. #103259
  8. #0c2543
  9. #08192c
  10. #040c16
  11. #000000

Tints

#287cde mixed progressively with white.

  1. #287cde
  2. #3e89e1
  3. #5396e5
  4. #69a3e8
  5. #7eb0eb
  6. #94beef
  7. #a9cbf2
  8. #bfd8f5
  9. #d4e5f8
  10. #eaf2fc
  11. #ffffff

Tones

#287cde mixed progressively with gray.

  1. #287cde
  2. #317cd5
  3. #3a7dcb
  4. #427dc2
  5. #4b7eb8
  6. #547eaf
  7. #5d7ea6
  8. #667f9c
  9. #6e7f93
  10. #778089
  11. #808080

Readable text 4.18:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.03:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #7c7c7c ≈ 0.003% of males
Achromatomaly #657cac ≈ 0.001% of males
Protanopia #4985e2 ≈ 1.01% of males
Deuteranopia #2074dc ≈ 1.27% of males
Tritanopia #0093a2 ≈ 0.0001% of males
Protanomaly #3e81e0 ≈ 1.08% of males
Deuteranomaly #2478dd ≈ 4.63% of males
Tritanomaly #008bbd ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-287cde {
  color: #287cde;
}
Background
.bg-287cde {
  background-color: #287cde;
  color: #000000;
}
Border
.border-287cde {
  border: 2px solid #287cde;
}
CSS variables
:root {
  --color-primary: #287cde;
  --color-primary-rgb: 40 124 222;
  --color-primary-hsl: 212 73% 51%;
}
Gradient
.gradient-287cde {
  background: linear-gradient(135deg, #287cde, #2f28de);
}
Colored shadow
.shadow-287cde {
  box-shadow: 0 8px 24px rgb(40 124 222 / 0.35);
}

#417dc1 Tufts Blue ΔE 2.67 #0073cf True Blue ΔE 4.13 #4682b4 Steel Blue ΔE 4.89 #318ce7 Bleu de France ΔE 5.64 #0070ff Brandeis Blue ΔE 5.67 #0072bb French Blue ΔE 6.43 #6082b6 Glaucous ΔE 6.54 #d78321 Inverted #7c7c7c Grayscale 

Tufts Blue
#287cde  rgb(40, 124, 222)  hsl(212, 73%, 51%)  Tufts Blue
#de8a28  rgb(222, 138, 40)  hsl(32, 73%, 51%)  Fulvous
#de287c  rgb(222, 40, 124)  hsl(332, 73%, 51%)  Telemagenta
#7cde28  rgb(124, 222, 40)  hsl(92, 73%, 51%)  Yellow Green