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#287CDA

#287cda ≈ Tufts Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#287cda 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 85.49% blue; printed in CMYK it uses 81.65% cyan, 43.12% magenta, 0% yellow and 14.51% black. Its hue angle is 211.69°, with 70.63% saturation and 50.59% 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 4.99:1 (WCAG AA). The closest named color is Tufts Blue (#417dc1), ΔE 2.35.

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 luminance0.1993

Complementary

  1. #287cda
  2. #da8628

Split complementary

  1. #287cda
  2. #da2d28
  3. #d5da28

Analogous

  1. #28d5da
  2. #287cda
  3. #2d28da

Triadic

  1. #287cda
  2. #da287c
  3. #7cda28

Tetradic

  1. #287cda
  2. #8628da
  3. #da8628
  4. #7cda28

Square

  1. #287cda
  2. #da28d5
  3. #da8628
  4. #28da2d

Monochromatic

  1. #0f325a
  2. #1b579b
  3. #287cda
  4. #69a4e5
  5. #abccf0

Shades

#287cda mixed progressively with black.

  1. #287cda
  2. #2470c4
  3. #2063ae
  4. #1c5799
  5. #184a83
  6. #143e6d
  7. #103257
  8. #0c2541
  9. #08192c
  10. #040c16
  11. #000000

Tints

#287cda mixed progressively with white.

  1. #287cda
  2. #3e89de
  3. #5396e1
  4. #69a3e5
  5. #7eb0e9
  6. #94beed
  7. #a9cbf0
  8. #bfd8f4
  9. #d4e5f8
  10. #eaf2fb
  11. #ffffff

Tones

#287cda mixed progressively with gray.

  1. #287cda
  2. #317cd1
  3. #3a7dc8
  4. #427dbf
  5. #4b7eb6
  6. #547ead
  7. #5d7ea4
  8. #667f9b
  9. #6e7f92
  10. #778089
  11. #808080

Readable text 4.21:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 4.99:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #7b7b7b ≈ 0.003% of males
Achromatomaly #647caa ≈ 0.001% of males
Protanopia #4c84de ≈ 1.01% of males
Deuteranopia #2874d8 ≈ 1.27% of males
Tritanopia #0092a0 ≈ 0.0001% of males
Protanomaly #4081dc ≈ 1.08% of males
Deuteranomaly #2877d9 ≈ 4.63% of males
Tritanomaly #008aba ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-287cda {
  color: #287cda;
}
Background
.bg-287cda {
  background-color: #287cda;
  color: #000000;
}
Border
.border-287cda {
  border: 2px solid #287cda;
}
CSS variables
:root {
  --color-primary: #287cda;
  --color-primary-rgb: 40 124 218;
  --color-primary-hsl: 212 71% 51%;
}
Gradient
.gradient-287cda {
  background: linear-gradient(135deg, #287cda, #2d28da);
}
Colored shadow
.shadow-287cda {
  box-shadow: 0 8px 24px rgb(40 124 218 / 0.35);
}

#417dc1 Tufts Blue ΔE 2.35 #0073cf True Blue ΔE 3.82 #4682b4 Steel Blue ΔE 4.61 #318ce7 Bleu de France ΔE 5.68 #0072bb French Blue ΔE 6.00 #0070ff Brandeis Blue ΔE 6.02 #6082b6 Glaucous ΔE 6.55 #d78325 Inverted #7b7b7b Grayscale 

Tufts Blue
#287cda  rgb(40, 124, 218)  hsl(212, 71%, 51%)  Tufts Blue
#da8628  rgb(218, 134, 40)  hsl(32, 71%, 51%)  Fulvous
#da287c  rgb(218, 40, 124)  hsl(332, 71%, 51%)  Telemagenta
#7cda28  rgb(124, 218, 40)  hsl(92, 71%, 51%)  Yellow Green