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#287DCF

#287dcf ≈ Tufts Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#287dcf is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 15.69% red, 49.02% green and 81.18% blue; printed in CMYK it uses 80.68% cyan, 39.61% magenta, 0% yellow and 18.82% black. Its hue angle is 209.46°, with 67.61% saturation and 48.43% 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 4.92:1 (WCAG AA). The closest named color is Tufts Blue (#417dc1), ΔE 2.

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 luminance0.1962

Complementary

  1. #287dcf
  2. #cf7a28

Split complementary

  1. #287dcf
  2. #cf282a
  3. #cfcd28

Analogous

  1. #28cfcd
  2. #287dcf
  3. #282acf

Triadic

  1. #287dcf
  2. #cf287d
  3. #7dcf28

Tetradic

  1. #287dcf
  2. #7a28cf
  3. #cf7a28
  4. #7dcf28

Square

  1. #287dcf
  2. #cd28cf
  3. #cf7a28
  4. #2acf28

Monochromatic

  1. #0f304f
  2. #1c568f
  3. #287dcf
  4. #63a3e1
  5. #a3c9ed

Shades

#287dcf mixed progressively with black.

  1. #287dcf
  2. #2471ba
  3. #2064a6
  4. #1c5891
  5. #184b7c
  6. #143f68
  7. #103253
  8. #0c263e
  9. #081929
  10. #040d15
  11. #000000

Tints

#287dcf mixed progressively with white.

  1. #287dcf
  2. #3e8ad4
  3. #5397d9
  4. #69a4dd
  5. #7eb1e2
  6. #94bee7
  7. #a9cbec
  8. #bfd8f1
  9. #d4e5f5
  10. #eaf2fa
  11. #ffffff

Tones

#287dcf mixed progressively with gray.

  1. #287dcf
  2. #317dc7
  3. #3a7ebf
  4. #427eb7
  5. #4b7eaf
  6. #547fa8
  7. #5d7fa0
  8. #667f98
  9. #6e7f90
  10. #778088
  11. #808080

Readable text 4.26:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 4.92:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #7a7a7a ≈ 0.003% of males
Achromatomaly #647ba3 ≈ 0.001% of males
Protanopia #5583d2 ≈ 1.01% of males
Deuteranopia #3a74cd ≈ 1.27% of males
Tritanopia #00919c ≈ 0.0001% of males
Protanomaly #4780d1 ≈ 1.08% of males
Deuteranomaly #3377ce ≈ 4.63% of males
Tritanomaly #0089b3 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-287dcf {
  color: #287dcf;
}
Background
.bg-287dcf {
  background-color: #287dcf;
  color: #000000;
}
Border
.border-287dcf {
  border: 2px solid #287dcf;
}
CSS variables
:root {
  --color-primary: #287dcf;
  --color-primary-rgb: 40 125 207;
  --color-primary-hsl: 209 68% 48%;
}
Gradient
.gradient-287dcf {
  background: linear-gradient(135deg, #287dcf, #282acf);
}
Colored shadow
.shadow-287dcf {
  box-shadow: 0 8px 24px rgb(40 125 207 / 0.35);
}

#417dc1 Tufts Blue ΔE 2.00 #0073cf True Blue ΔE 3.65 #4682b4 Steel Blue ΔE 3.69 #0072bb French Blue ΔE 5.09 #318ce7 Bleu de France ΔE 5.69 #6082b6 Glaucous ΔE 6.76 #0070ff Brandeis Blue ΔE 7.30 #d78230 Inverted #7a7a7a Grayscale 

Tufts Blue
#287dcf  rgb(40, 125, 207)  hsl(209, 68%, 48%)  Tufts Blue
#cf7a28  rgb(207, 122, 40)  hsl(29, 68%, 48%)  Ochre
#cf287d  rgb(207, 40, 125)  hsl(329, 68%, 48%)  Telemagenta
#7dcf28  rgb(125, 207, 40)  hsl(89, 68%, 48%)  Yellow Green