ColorTool
Log in
#287CAF

#287caf ≈ Cerulean

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

#287caf 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 68.63% blue; printed in CMYK it uses 77.14% cyan, 29.14% magenta, 0% yellow and 31.37% black. Its hue angle is 202.67°, with 62.79% saturation and 42.16% 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 4.59:1 (WCAG AA). The closest named color is Cerulean (#007ba7), ΔE 3.63.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#336699
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1796

Complementary

  1. #287caf
  2. #af5b28

Split complementary

  1. #287caf
  2. #af2838
  3. #af9f28

Analogous

  1. #28af9f
  2. #287caf
  3. #2838af

Triadic

  1. #287caf
  2. #af287c
  3. #7caf28

Tetradic

  1. #287caf
  2. #5b28af
  3. #af5b28
  4. #7caf28

Square

  1. #287caf
  2. #9f28af
  3. #af5b28
  4. #38af28

Monochromatic

  1. #0c2432
  2. #1a5071
  3. #287caf
  4. #4da3d6
  5. #8bc3e5

Shades

#287caf mixed progressively with black.

  1. #287caf
  2. #24709e
  3. #20638c
  4. #1c577b
  5. #184a69
  6. #143e58
  7. #103246
  8. #0c2535
  9. #081923
  10. #040c12
  11. #000000

Tints

#287caf mixed progressively with white.

  1. #287caf
  2. #3e89b7
  3. #5396bf
  4. #69a3c7
  5. #7eb0cf
  6. #94bed7
  7. #a9cbdf
  8. #bfd8e7
  9. #d4e5ef
  10. #eaf2f7
  11. #ffffff

Tones

#287caf mixed progressively with gray.

  1. #287caf
  2. #317caa
  3. #3a7da6
  4. #427da1
  5. #4b7e9c
  6. #547e98
  7. #5d7e93
  8. #667f8e
  9. #6e7f89
  10. #778085
  11. #808080

Readable text 4.57:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.59:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #767676 ≈ 0.003% of males
Achromatomaly #607890 ≈ 0.001% of males
Protanopia #647db1 ≈ 1.01% of males
Deuteranopia #5270ae ≈ 1.27% of males
Tritanopia #00898e ≈ 0.0001% of males
Protanomaly #527cb0 ≈ 1.08% of males
Deuteranomaly #4475ae ≈ 4.63% of males
Tritanomaly #00849c ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-287caf {
  color: #287caf;
}
Background
.bg-287caf {
  background-color: #287caf;
  color: #000000;
}
Border
.border-287caf {
  border: 2px solid #287caf;
}
CSS variables
:root {
  --color-primary: #287caf;
  --color-primary-rgb: 40 124 175;
  --color-primary-hsl: 203 63% 42%;
}
Gradient
.gradient-287caf {
  background: linear-gradient(135deg, #287caf, #2838af);
}
Colored shadow
.shadow-287caf {
  box-shadow: 0 8px 24px rgb(40 124 175 / 0.35);
}

#007ba7 Cerulean ΔE 3.63 #4682b4 Steel Blue ΔE 3.91 #0072bb French Blue ΔE 4.81 #417dc1 Tufts Blue ΔE 5.50 #0073cf True Blue ΔE 6.15 #006994 Sea Blue ΔE 7.66 #5d8aa8 Air Force Blue ΔE 7.82 #d78350 Inverted #767676 Grayscale 

Cerulean
#287caf  rgb(40, 124, 175)  hsl(203, 63%, 42%)  Cerulean
#af5b28  rgb(175, 91, 40)  hsl(23, 63%, 42%)  Sienna
#af287c  rgb(175, 40, 124)  hsl(323, 63%, 42%)  Medium Violet Red
#7caf28  rgb(124, 175, 40)  hsl(83, 63%, 42%)  Apple Green