ColorTool
Log in
#515EFF

#515eff ≈ Ultramarine Blue

  • blue
  • Lightness: high
  • Saturation: strong
  • Cool
Check contrast Explore in graph Random color

#515eff is a color from the blue family, with high lightness and strong saturation. In the RGB model it is made of 31.76% red, 36.86% green and 100% blue; printed in CMYK it uses 68.24% cyan, 63.14% magenta, 0% yellow and 0% black. Its hue angle is 235.52°, with 100% saturation and 65.88% 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 4.78:1 (WCAG AA). The closest named color is Ultramarine Blue (#4166f5), ΔE 3.63.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#6666ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1697

Complementary

  1. #515eff
  2. #fff251

Split complementary

  1. #515eff
  2. #ff9b51
  3. #b5ff51

Analogous

  1. #51b5ff
  2. #515eff
  3. #9b51ff

Triadic

  1. #515eff
  2. #ff515e
  3. #5eff51

Tetradic

  1. #515eff
  2. #f251ff
  3. #fff251
  4. #5eff51

Square

  1. #515eff
  2. #ff51b5
  3. #fff251
  4. #51ff9b

Monochromatic

  1. #000eb7
  2. #0417ff
  3. #515eff
  4. #9da5ff
  5. #eaecff

Shades

#515eff mixed progressively with black.

  1. #515eff
  2. #4955e6
  3. #414bcc
  4. #3942b3
  5. #313899
  6. #292f80
  7. #202666
  8. #181c4d
  9. #101333
  10. #08091a
  11. #000000

Tints

#515eff mixed progressively with white.

  1. #515eff
  2. #626eff
  3. #747eff
  4. #858eff
  5. #979eff
  6. #a8afff
  7. #b9bfff
  8. #cbcfff
  9. #dcdfff
  10. #eeefff
  11. #ffffff

Tones

#515eff mixed progressively with gray.

  1. #515eff
  2. #5661f2
  3. #5a65e6
  4. #5f68d9
  5. #646ccc
  6. #696fc0
  7. #6d72b3
  8. #7276a6
  9. #777999
  10. #7b7d8d
  11. #808080

Readable text 4.78:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.39:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #727272 ≈ 0.003% of males
Achromatomaly #676bbc ≈ 0.001% of males
Protanopia #007bff ≈ 1.01% of males
Deuteranopia #006bfc ≈ 1.27% of males
Tritanopia #0088a6 ≈ 0.0001% of males
Protanomaly #0070ff ≈ 1.08% of males
Deuteranomaly #0066fd ≈ 4.63% of males
Tritanomaly #0079d0 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-515eff {
  color: #515eff;
}
Background
.bg-515eff {
  background-color: #515eff;
  color: #ffffff;
}
Border
.border-515eff {
  border: 2px solid #515eff;
}
CSS variables
:root {
  --color-primary: #515eff;
  --color-primary-rgb: 81 94 255;
  --color-primary-hsl: 236 100% 66%;
}
Gradient
.gradient-515eff {
  background: linear-gradient(135deg, #515eff, #9b51ff);
}
Colored shadow
.shadow-515eff {
  box-shadow: 0 8px 24px rgb(81 94 255 / 0.35);
}

#4166f5 Ultramarine Blue ΔE 3.63 #4169e1 Royal Blue ΔE 6.12 #7b68ee Medium Slate Blue ΔE 6.37 #6050dc Majorelle Blue ΔE 6.49 #6a5acd Slate Blue ΔE 7.30 #5a4fcf Iris ΔE 7.91 #0070ff Brandeis Blue ΔE 8.37 #aea100 Inverted #727272 Grayscale 

Ultramarine Blue
#515eff  rgb(81, 94, 255)  hsl(236, 100%, 66%)  Ultramarine Blue
#fff251  rgb(255, 242, 81)  hsl(56, 100%, 66%)  Icterine
#ff515e  rgb(255, 81, 94)  hsl(356, 100%, 66%)  Neon Fuchsia
#5eff51  rgb(94, 255, 81)  hsl(116, 100%, 66%)  Neon Green