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#287CDB

#287cdb ≈ Tufts Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#287cdb 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 85.88% blue; printed in CMYK it uses 81.74% cyan, 43.38% magenta, 0% yellow and 14.12% black. Its hue angle is 211.84°, with 71.31% saturation and 50.78% 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 5:1 (WCAG AA). The closest named color is Tufts Blue (#417dc1), ΔE 2.42.

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 luminance0.1998

Complementary

  1. #287cdb
  2. #db8728

Split complementary

  1. #287cdb
  2. #db2d28
  3. #d6db28

Analogous

  1. #28d6db
  2. #287cdb
  3. #2d28db

Triadic

  1. #287cdb
  2. #db287c
  3. #7cdb28

Tetradic

  1. #287cdb
  2. #8728db
  3. #db8728
  4. #7cdb28

Square

  1. #287cdb
  2. #db28d6
  3. #db8728
  4. #28db2d

Monochromatic

  1. #0f335b
  2. #1a579c
  3. #287cdb
  4. #6aa4e6
  5. #abccf1

Shades

#287cdb mixed progressively with black.

  1. #287cdb
  2. #2470c5
  3. #2063af
  4. #1c5799
  5. #184a83
  6. #143e6e
  7. #103258
  8. #0c2542
  9. #08192c
  10. #040c16
  11. #000000

Tints

#287cdb mixed progressively with white.

  1. #287cdb
  2. #3e89df
  3. #5396e2
  4. #69a3e6
  5. #7eb0e9
  6. #94beed
  7. #a9cbf1
  8. #bfd8f4
  9. #d4e5f8
  10. #eaf2fb
  11. #ffffff

Tones

#287cdb mixed progressively with gray.

  1. #287cdb
  2. #317cd2
  3. #3a7dc9
  4. #427dc0
  5. #4b7eb7
  6. #547eae
  7. #5d7ea4
  8. #667f9b
  9. #6e7f92
  10. #778089
  11. #808080

Readable text 4.2:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #7c7c7c ≈ 0.003% of males
Achromatomaly #647caa ≈ 0.001% of males
Protanopia #4b84df ≈ 1.01% of males
Deuteranopia #2674d9 ≈ 1.27% of males
Tritanopia #0093a1 ≈ 0.0001% of males
Protanomaly #4081dd ≈ 1.08% of males
Deuteranomaly #2777da ≈ 4.63% of males
Tritanomaly #008abb ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-287cdb {
  color: #287cdb;
}
Background
.bg-287cdb {
  background-color: #287cdb;
  color: #000000;
}
Border
.border-287cdb {
  border: 2px solid #287cdb;
}
CSS variables
:root {
  --color-primary: #287cdb;
  --color-primary-rgb: 40 124 219;
  --color-primary-hsl: 212 71% 51%;
}
Gradient
.gradient-287cdb {
  background: linear-gradient(135deg, #287cdb, #2d28db);
}
Colored shadow
.shadow-287cdb {
  box-shadow: 0 8px 24px rgb(40 124 219 / 0.35);
}

#417dc1 Tufts Blue ΔE 2.42 #0073cf True Blue ΔE 3.90 #4682b4 Steel Blue ΔE 4.68 #318ce7 Bleu de France ΔE 5.67 #0070ff Brandeis Blue ΔE 5.93 #0072bb French Blue ΔE 6.11 #6082b6 Glaucous ΔE 6.55 #d78324 Inverted #7c7c7c Grayscale 

Tufts Blue
#287cdb  rgb(40, 124, 219)  hsl(212, 71%, 51%)  Tufts Blue
#db8728  rgb(219, 135, 40)  hsl(32, 71%, 51%)  Fulvous
#db287c  rgb(219, 40, 124)  hsl(332, 71%, 51%)  Telemagenta
#7cdb28  rgb(124, 219, 40)  hsl(92, 71%, 51%)  Yellow Green