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#155DFD

#155dfd ≈ Ultramarine Blue

  • blue
  • Lightness: medium
  • Saturation: vivid
  • Cool
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#155dfd is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 8.24% red, 36.47% green and 99.22% blue; printed in CMYK it uses 91.7% cyan, 63.24% magenta, 0% yellow and 0.78% black. Its hue angle is 221.38°, with 98.31% saturation and 53.73% 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 5.23:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 3.31.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#0066ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1508

Complementary

  1. #155dfd
  2. #fdb515

Split complementary

  1. #155dfd
  2. #fd4115
  3. #d1fd15

Analogous

  1. #15d1fd
  2. #155dfd
  3. #4115fd

Triadic

  1. #155dfd
  2. #fd155d
  3. #5dfd15

Tetradic

  1. #155dfd
  2. #b515fd
  3. #fdb515
  4. #5dfd15

Square

  1. #155dfd
  2. #fd15d1
  3. #fdb515
  4. #15fd41

Monochromatic

  1. #012678
  2. #023ec4
  3. #155dfd
  4. #6192fe
  5. #adc6fe

Shades

#155dfd mixed progressively with black.

  1. #155dfd
  2. #1354e4
  3. #114aca
  4. #0f41b1
  5. #0d3898
  6. #0b2f7f
  7. #082565
  8. #061c4c
  9. #041333
  10. #020919
  11. #000000

Tints

#155dfd mixed progressively with white.

  1. #155dfd
  2. #2c6dfd
  3. #447dfd
  4. #5b8efe
  5. #739efe
  6. #8aaefe
  7. #a1befe
  8. #b9cefe
  9. #d0dfff
  10. #e8efff
  11. #ffffff

Tones

#155dfd mixed progressively with gray.

  1. #155dfd
  2. #2061f1
  3. #2a64e4
  4. #3568d8
  5. #406bcb
  6. #4b6fbf
  7. #5572b2
  8. #6076a6
  9. #6b7999
  10. #757d8d
  11. #808080

Readable text 5.23:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.02:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #6c6c6c ≈ 0.003% of males
Achromatomaly #5667b9 ≈ 0.001% of males
Protanopia #0077ff ≈ 1.01% of males
Deuteranopia #0062fa ≈ 1.27% of males
Tritanopia #0088a5 ≈ 0.0001% of males
Protanomaly #006dff ≈ 1.08% of males
Deuteranomaly #0060fb ≈ 4.63% of males
Tritanomaly #0079ce ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-155dfd {
  color: #155dfd;
}
Background
.bg-155dfd {
  background-color: #155dfd;
  color: #ffffff;
}
Border
.border-155dfd {
  border: 2px solid #155dfd;
}
CSS variables
:root {
  --color-primary: #155dfd;
  --color-primary-rgb: 21 93 253;
  --color-primary-hsl: 221 98% 54%;
}
Gradient
.gradient-155dfd {
  background: linear-gradient(135deg, #155dfd, #4115fd);
}
Colored shadow
.shadow-155dfd {
  box-shadow: 0 8px 24px rgb(21 93 253 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 3.31 #4169e1 Royal Blue ΔE 4.68 #0070ff Brandeis Blue ΔE 6.56 #6050dc Majorelle Blue ΔE 8.20 #1560bd Denim ΔE 8.73 #5a4fcf Iris ΔE 8.77 #0f52ba Sapphire ΔE 9.41 #eaa202 Inverted #6c6c6c Grayscale 

Ultramarine Blue
#155dfd  rgb(21, 93, 253)  hsl(221, 98%, 54%)  Ultramarine Blue
#fdb515  rgb(253, 181, 21)  hsl(41, 98%, 54%)  Amber
#fd155d  rgb(253, 21, 93)  hsl(341, 98%, 54%)  Folly
#5dfd15  rgb(93, 253, 21)  hsl(101, 98%, 54%)  Harlequin