ColorTool
Log in
#281FDF

#281fdf ≈ Blue

  • blue
  • Lightness: medium
  • Saturation: vivid
  • Cool
Check contrast Explore in graph Random color

#281fdf is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 15.69% red, 12.16% green and 87.45% blue; printed in CMYK it uses 82.06% cyan, 86.1% magenta, 0% yellow and 12.55% black. Its hue angle is 242.81°, with 75.59% saturation and 49.8% lightness in HSL. It is a cool color, often associated with trust, stability and focus. Designers typically use it for technology products, finance and banking and brand accents. White text on this color reaches a contrast ratio of 8.93:1 (WCAG AAA). The closest named color is Blue (#0000ff), ΔE 3.38.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3333cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0676

Complementary

  1. #281fdf
  2. #d6df1f

Split complementary

  1. #281fdf
  2. #df881f
  3. #76df1f

Analogous

  1. #1f76df
  2. #281fdf
  3. #881fdf

Triadic

  1. #281fdf
  2. #df281f
  3. #1fdf28

Tetradic

  1. #281fdf
  2. #df1fd6
  3. #d6df1f
  4. #1fdf28

Square

  1. #281fdf
  2. #df1f76
  3. #d6df1f
  4. #1fdf88

Monochromatic

  1. #100c59
  2. #1c169c
  3. #281fdf
  4. #6861e9
  5. #a8a5f2

Shades

#281fdf mixed progressively with black.

  1. #281fdf
  2. #241cc9
  3. #2019b2
  4. #1c169c
  5. #181386
  6. #141070
  7. #100c59
  8. #0c0943
  9. #08062d
  10. #040316
  11. #000000

Tints

#281fdf mixed progressively with white.

  1. #281fdf
  2. #3e35e2
  3. #534ce5
  4. #6962e9
  5. #7e79ec
  6. #948fef
  7. #a9a5f2
  8. #bfbcf5
  9. #d4d2f9
  10. #eae9fc
  11. #ffffff

Tones

#281fdf mixed progressively with gray.

  1. #281fdf
  2. #3129d6
  3. #3a32cc
  4. #423cc3
  5. #4b46b9
  6. #5450b0
  7. #5d59a6
  8. #66639d
  9. #6e6d93
  10. #77768a
  11. #808080

Readable text 8.93:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.35:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #4a4a4a ≈ 0.003% of males
Achromatomaly #3f3d9d ≈ 0.001% of males
Protanopia #0053e4 ≈ 1.01% of males
Deuteranopia #003fdc ≈ 1.27% of males
Tritanopia #006185 ≈ 0.0001% of males
Protanomaly #0044e2 ≈ 1.08% of males
Deuteranomaly #0035dd ≈ 4.63% of males
Tritanomaly #004fb0 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-281fdf {
  color: #281fdf;
}
Background
.bg-281fdf {
  background-color: #281fdf;
  color: #ffffff;
}
Border
.border-281fdf {
  border: 2px solid #281fdf;
}
CSS variables
:root {
  --color-primary: #281fdf;
  --color-primary-rgb: 40 31 223;
  --color-primary-hsl: 243 76% 50%;
}
Gradient
.gradient-281fdf {
  background: linear-gradient(135deg, #281fdf, #881fdf);
}
Colored shadow
.shadow-281fdf {
  box-shadow: 0 8px 24px rgb(40 31 223 / 0.35);
}

#0000ff Blue ΔE 3.38 #3f00ff Ultramarine ΔE 4.28 #0000cd Medium Blue ΔE 4.85 #5218fa Han Purple ΔE 5.18 #1c39bb Persian Blue ΔE 6.88 #6f00ff Electric Indigo ΔE 8.07 #0014a8 Zaffre ΔE 8.16 #d7e020 Inverted #4a4a4a Grayscale 

Blue
#281fdf  rgb(40, 31, 223)  hsl(243, 76%, 50%)  Blue
#d6df1f  rgb(214, 223, 31)  hsl(63, 76%, 50%)  Pear
#df281f  rgb(223, 40, 31)  hsl(3, 76%, 50%)  Lust
#1fdf28  rgb(31, 223, 40)  hsl(123, 76%, 50%)  Malachite