ColorTool
Log in
#287CCE

#287cce ≈ Tufts Blue

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

#287cce 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 80.78% blue; printed in CMYK it uses 80.58% cyan, 39.81% magenta, 0% yellow and 19.22% black. Its hue angle is 209.64°, with 67.48% saturation and 48.24% 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 4.86:1 (WCAG AA). The closest named color is Tufts Blue (#417dc1), ΔE 1.93.

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 luminance0.1932

Complementary

  1. #287cce
  2. #ce7a28

Split complementary

  1. #287cce
  2. #ce2829
  3. #cecd28

Analogous

  1. #28cecd
  2. #287cce
  3. #2829ce

Triadic

  1. #287cce
  2. #ce287c
  3. #7cce28

Tetradic

  1. #287cce
  2. #7a28ce
  3. #ce7a28
  4. #7cce28

Square

  1. #287cce
  2. #cd28ce
  3. #ce7a28
  4. #29ce28

Monochromatic

  1. #0f2f4e
  2. #1c558e
  3. #287cce
  4. #62a2e1
  5. #a2c8ed

Shades

#287cce mixed progressively with black.

  1. #287cce
  2. #2470b9
  3. #2063a5
  4. #1c5790
  5. #184a7c
  6. #143e67
  7. #103252
  8. #0c253e
  9. #081929
  10. #040c15
  11. #000000

Tints

#287cce mixed progressively with white.

  1. #287cce
  2. #3e89d3
  3. #5396d8
  4. #69a3dd
  5. #7eb0e2
  6. #94bee7
  7. #a9cbeb
  8. #bfd8f0
  9. #d4e5f5
  10. #eaf2fa
  11. #ffffff

Tones

#287cce mixed progressively with gray.

  1. #287cce
  2. #317cc6
  3. #3a7dbe
  4. #427db7
  5. #4b7eaf
  6. #547ea7
  7. #5d7e9f
  8. #667f97
  9. #6e7f90
  10. #778088
  11. #808080

Readable text 4.32:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 4.86:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #7a7a7a ≈ 0.003% of males
Achromatomaly #637ba2 ≈ 0.001% of males
Protanopia #5482d1 ≈ 1.01% of males
Deuteranopia #3973cc ≈ 1.27% of males
Tritanopia #00909b ≈ 0.0001% of males
Protanomaly #467fd0 ≈ 1.08% of males
Deuteranomaly #3377cd ≈ 4.63% of males
Tritanomaly #0088b2 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-287cce {
  color: #287cce;
}
Background
.bg-287cce {
  background-color: #287cce;
  color: #000000;
}
Border
.border-287cce {
  border: 2px solid #287cce;
}
CSS variables
:root {
  --color-primary: #287cce;
  --color-primary-rgb: 40 124 206;
  --color-primary-hsl: 210 67% 48%;
}
Gradient
.gradient-287cce {
  background: linear-gradient(135deg, #287cce, #2829ce);
}
Colored shadow
.shadow-287cce {
  box-shadow: 0 8px 24px rgb(40 124 206 / 0.35);
}

#417dc1 Tufts Blue ΔE 1.93 #0073cf True Blue ΔE 3.28 #4682b4 Steel Blue ΔE 3.83 #0072bb French Blue ΔE 4.79 #318ce7 Bleu de France ΔE 6.05 #6082b6 Glaucous ΔE 6.79 #0070ff Brandeis Blue ΔE 7.15 #d78331 Inverted #7a7a7a Grayscale 

Tufts Blue
#287cce  rgb(40, 124, 206)  hsl(210, 67%, 48%)  Tufts Blue
#ce7a28  rgb(206, 122, 40)  hsl(30, 67%, 48%)  Ochre
#ce287c  rgb(206, 40, 124)  hsl(330, 67%, 48%)  Telemagenta
#7cce28  rgb(124, 206, 40)  hsl(90, 67%, 48%)  Yellow Green