ColorTool
Log in
#255BF1

#255bf1 ≈ Ultramarine Blue

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

#255bf1 is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 14.51% red, 35.69% green and 94.51% blue; printed in CMYK it uses 84.65% cyan, 62.24% magenta, 0% yellow and 5.49% black. Its hue angle is 224.12°, with 87.93% saturation and 54.51% 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 call-to-action buttons. White text on this color reaches a contrast ratio of 5.46:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 3.96.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3366ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1423

Complementary

  1. #255bf1
  2. #f1bb25

Split complementary

  1. #255bf1
  2. #f15525
  3. #c1f125

Analogous

  1. #25c1f1
  2. #255bf1
  3. #5525f1

Triadic

  1. #255bf1
  2. #f1255b
  3. #5bf125

Tetradic

  1. #255bf1
  2. #bb25f1
  3. #f1bb25
  4. #5bf125

Square

  1. #255bf1
  2. #f125c1
  3. #f1bb25
  4. #25f155

Monochromatic

  1. #082575
  2. #0c3bbd
  3. #255bf1
  4. #6d91f6
  5. #b5c7fa

Shades

#255bf1 mixed progressively with black.

  1. #255bf1
  2. #2152d9
  3. #1e49c1
  4. #1a40a9
  5. #163791
  6. #132e79
  7. #0f2460
  8. #0b1b48
  9. #071230
  10. #040918
  11. #000000

Tints

#255bf1 mixed progressively with white.

  1. #255bf1
  2. #3b6bf2
  3. #517cf4
  4. #668cf5
  5. #7c9df7
  6. #92adf8
  7. #a8bdf9
  8. #becefb
  9. #d3defc
  10. #e9effe
  11. #ffffff

Tones

#255bf1 mixed progressively with gray.

  1. #255bf1
  2. #2e5fe6
  3. #3762da
  4. #4066cf
  5. #496ac4
  6. #536eb9
  7. #5c71ad
  8. #6575a2
  9. #6e7997
  10. #777c8b
  11. #808080

Readable text 5.46:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 3.85:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #696969 ≈ 0.003% of males
Achromatomaly #5664b1 ≈ 0.001% of males
Protanopia #0073f6 ≈ 1.01% of males
Deuteranopia #0060ee ≈ 1.27% of males
Tritanopia #00839e ≈ 0.0001% of males
Protanomaly #006af4 ≈ 1.08% of males
Deuteranomaly #005eef ≈ 4.63% of males
Tritanomaly #0075c5 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-255bf1 {
  color: #255bf1;
}
Background
.bg-255bf1 {
  background-color: #255bf1;
  color: #ffffff;
}
Border
.border-255bf1 {
  border: 2px solid #255bf1;
}
CSS variables
:root {
  --color-primary: #255bf1;
  --color-primary-rgb: 37 91 241;
  --color-primary-hsl: 224 88% 55%;
}
Gradient
.gradient-255bf1 {
  background: linear-gradient(135deg, #255bf1, #5525f1);
}
Colored shadow
.shadow-255bf1 {
  box-shadow: 0 8px 24px rgb(37 91 241 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 3.96 #4169e1 Royal Blue ΔE 4.73 #6050dc Majorelle Blue ΔE 7.30 #0070ff Brandeis Blue ΔE 7.54 #5a4fcf Iris ΔE 7.59 #1560bd Denim ΔE 7.99 #0f52ba Sapphire ΔE 8.14 #daa40e Inverted #696969 Grayscale 

Ultramarine Blue
#255bf1  rgb(37, 91, 241)  hsl(224, 88%, 55%)  Ultramarine Blue
#f1bb25  rgb(241, 187, 37)  hsl(44, 88%, 55%)  Saffron
#f1255b  rgb(241, 37, 91)  hsl(344, 88%, 55%)  Amaranth
#5bf125  rgb(91, 241, 37)  hsl(104, 88%, 55%)  Harlequin