ColorTool
Log in
#255EFD

#255efd ≈ Ultramarine Blue

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

#255efd is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 14.51% red, 36.86% green and 99.22% blue; printed in CMYK it uses 85.38% cyan, 62.85% magenta, 0% yellow and 0.78% black. Its hue angle is 224.17°, with 98.18% saturation and 56.86% 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 5.12:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 2.77.

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 luminance0.1549

Complementary

  1. #255efd
  2. #fdc425

Split complementary

  1. #255efd
  2. #fd5825
  3. #cafd25

Analogous

  1. #25cafd
  2. #255efd
  3. #5825fd

Triadic

  1. #255efd
  2. #fd255e
  3. #5efd25

Tetradic

  1. #255efd
  2. #c425fd
  3. #fdc425
  4. #5efd25

Square

  1. #255efd
  2. #fd25ca
  3. #fdc425
  4. #25fd58

Monochromatic

  1. #012588
  2. #0239d4
  3. #255efd
  4. #7196fe
  5. #bdcefe

Shades

#255efd mixed progressively with black.

  1. #255efd
  2. #2155e4
  3. #1e4bca
  4. #1a42b1
  5. #163898
  6. #132f7f
  7. #0f2665
  8. #0b1c4c
  9. #071333
  10. #040919
  11. #000000

Tints

#255efd mixed progressively with white.

  1. #255efd
  2. #3b6efd
  3. #517efd
  4. #668efe
  5. #7c9efe
  6. #92affe
  7. #a8bffe
  8. #becffe
  9. #d3dfff
  10. #e9efff
  11. #ffffff

Tones

#255efd mixed progressively with gray.

  1. #255efd
  2. #2e61f1
  3. #3765e4
  4. #4068d8
  5. #496ccb
  6. #536fbf
  7. #5c72b2
  8. #6576a6
  9. #6e7999
  10. #777d8d
  11. #808080

Readable text 5.12:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.1:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #6e6e6e ≈ 0.003% of males
Achromatomaly #5968b9 ≈ 0.001% of males
Protanopia #0078ff ≈ 1.01% of males
Deuteranopia #0064fa ≈ 1.27% of males
Tritanopia #0088a5 ≈ 0.0001% of males
Protanomaly #006eff ≈ 1.08% of males
Deuteranomaly #0062fb ≈ 4.63% of males
Tritanomaly #007ace ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-255efd {
  color: #255efd;
}
Background
.bg-255efd {
  background-color: #255efd;
  color: #ffffff;
}
Border
.border-255efd {
  border: 2px solid #255efd;
}
CSS variables
:root {
  --color-primary: #255efd;
  --color-primary-rgb: 37 94 253;
  --color-primary-hsl: 224 98% 57%;
}
Gradient
.gradient-255efd {
  background: linear-gradient(135deg, #255efd, #5825fd);
}
Colored shadow
.shadow-255efd {
  box-shadow: 0 8px 24px rgb(37 94 253 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 2.77 #4169e1 Royal Blue ΔE 4.47 #0070ff Brandeis Blue ΔE 6.44 #6050dc Majorelle Blue ΔE 7.97 #5a4fcf Iris ΔE 8.66 #6a5acd Slate Blue ΔE 9.09 #1560bd Denim ΔE 9.13 #daa102 Inverted #6e6e6e Grayscale 

Ultramarine Blue
#255efd  rgb(37, 94, 253)  hsl(224, 98%, 57%)  Ultramarine Blue
#fdc425  rgb(253, 196, 37)  hsl(44, 98%, 57%)  Mikado Yellow
#fd255e  rgb(253, 37, 94)  hsl(344, 98%, 57%)  Neon Fuchsia
#5efd25  rgb(94, 253, 37)  hsl(104, 98%, 57%)  Harlequin