ColorTool
Log in
#287CBC

#287cbc ≈ Steel Blue

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

#287cbc 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 73.73% blue; printed in CMYK it uses 78.72% cyan, 34.04% magenta, 0% yellow and 26.27% black. Its hue angle is 205.95°, with 64.91% saturation and 44.71% 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 4.7:1 (WCAG AA). The closest named color is Steel Blue (#4682b4), ΔE 3.19.

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 luminance0.185

Complementary

  1. #287cbc
  2. #bc6828

Split complementary

  1. #287cbc
  2. #bc2832
  3. #bcb228

Analogous

  1. #28bcb2
  2. #287cbc
  3. #2832bc

Triadic

  1. #287cbc
  2. #bc287c
  3. #7cbc28

Tetradic

  1. #287cbc
  2. #6828bc
  3. #bc6828
  4. #7cbc28

Square

  1. #287cbc
  2. #b228bc
  3. #bc6828
  4. #32bc28

Monochromatic

  1. #0d293e
  2. #1b527d
  3. #287cbc
  4. #56a1db
  5. #95c4e8

Shades

#287cbc mixed progressively with black.

  1. #287cbc
  2. #2470a9
  3. #206396
  4. #1c5784
  5. #184a71
  6. #143e5e
  7. #10324b
  8. #0c2538
  9. #081926
  10. #040c13
  11. #000000

Tints

#287cbc mixed progressively with white.

  1. #287cbc
  2. #3e89c3
  3. #5396c9
  4. #69a3d0
  5. #7eb0d7
  6. #94bede
  7. #a9cbe4
  8. #bfd8eb
  9. #d4e5f2
  10. #eaf2f8
  11. #ffffff

Tones

#287cbc mixed progressively with gray.

  1. #287cbc
  2. #317cb6
  3. #3a7db0
  4. #427daa
  5. #4b7ea4
  6. #547e9e
  7. #5d7e98
  8. #667f92
  9. #6e7f8c
  10. #778086
  11. #808080

Readable text 4.47:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 4.7:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #777777 ≈ 0.003% of males
Achromatomaly #617998 ≈ 0.001% of males
Protanopia #5e7fbf ≈ 1.01% of males
Deuteranopia #4971bb ≈ 1.27% of males
Tritanopia #008b93 ≈ 0.0001% of males
Protanomaly #4e7ebe ≈ 1.08% of males
Deuteranomaly #3e76bb ≈ 4.63% of males
Tritanomaly #0086a5 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-287cbc {
  color: #287cbc;
}
Background
.bg-287cbc {
  background-color: #287cbc;
  color: #000000;
}
Border
.border-287cbc {
  border: 2px solid #287cbc;
}
CSS variables
:root {
  --color-primary: #287cbc;
  --color-primary-rgb: 40 124 188;
  --color-primary-hsl: 206 65% 45%;
}
Gradient
.gradient-287cbc {
  background: linear-gradient(135deg, #287cbc, #2832bc);
}
Colored shadow
.shadow-287cbc {
  box-shadow: 0 8px 24px rgb(40 124 188 / 0.35);
}

#4682b4 Steel Blue ΔE 3.19 #417dc1 Tufts Blue ΔE 3.37 #0072bb French Blue ΔE 3.79 #0073cf True Blue ΔE 4.14 #007ba7 Cerulean ΔE 6.41 #318ce7 Bleu de France ΔE 7.35 #6082b6 Glaucous ΔE 7.75 #d78343 Inverted #777777 Grayscale 

Steel Blue
#287cbc  rgb(40, 124, 188)  hsl(206, 65%, 45%)  Steel Blue
#bc6828  rgb(188, 104, 40)  hsl(26, 65%, 45%)  Copper
#bc287c  rgb(188, 40, 124)  hsl(326, 65%, 45%)  Medium Violet Red
#7cbc28  rgb(124, 188, 40)  hsl(86, 65%, 45%)  Apple Green