ColorTool
Log in
#1237DD

#1237dd ≈ Persian Blue

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

#1237dd is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 7.06% red, 21.57% green and 86.67% blue; printed in CMYK it uses 91.86% cyan, 75.11% magenta, 0% yellow and 13.33% black. Its hue angle is 229.06°, with 84.94% saturation and 46.86% 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 8.03:1 (WCAG AAA). The closest named color is Persian Blue (#1c39bb), ΔE 4.29.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#0033cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0808

Complementary

  1. #1237dd
  2. #ddb812

Split complementary

  1. #1237dd
  2. #dd5212
  3. #9ddd12

Analogous

  1. #129ddd
  2. #1237dd
  3. #5212dd

Triadic

  1. #1237dd
  2. #dd1237
  3. #37dd12

Tetradic

  1. #1237dd
  2. #b812dd
  3. #ddb812
  4. #37dd12

Square

  1. #1237dd
  2. #dd129d
  3. #ddb812
  4. #12dd52

Monochromatic

  1. #061450
  2. #0c2596
  3. #1237dd
  4. #4b69f0
  5. #92a4f6

Shades

#1237dd mixed progressively with black.

  1. #1237dd
  2. #1032c7
  3. #0e2cb1
  4. #0d279b
  5. #0b2185
  6. #091c6f
  7. #071658
  8. #051142
  9. #040b2c
  10. #020616
  11. #000000

Tints

#1237dd mixed progressively with white.

  1. #1237dd
  2. #2a4be0
  3. #415fe4
  4. #5973e7
  5. #7187eb
  6. #899bee
  7. #a0aff1
  8. #b8c3f5
  9. #d0d7f8
  10. #e7ebfc
  11. #ffffff

Tones

#1237dd mixed progressively with gray.

  1. #1237dd
  2. #1d3ed4
  3. #2846ca
  4. #334dc1
  5. #3e54b8
  6. #495caf
  7. #5463a5
  8. #5f6a9c
  9. #6a7193
  10. #757989
  11. #808080

Readable text 8.03:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.62:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #505050 ≈ 0.003% of males
Achromatomaly #40479d ≈ 0.001% of males
Protanopia #005ae2 ≈ 1.01% of males
Deuteranopia #0046da ≈ 1.27% of males
Tritanopia #006988 ≈ 0.0001% of males
Protanomaly #004ee0 ≈ 1.08% of males
Deuteranomaly #0041db ≈ 4.63% of males
Tritanomaly #0059b1 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-1237dd {
  color: #1237dd;
}
Background
.bg-1237dd {
  background-color: #1237dd;
  color: #ffffff;
}
Border
.border-1237dd {
  border: 2px solid #1237dd;
}
CSS variables
:root {
  --color-primary: #1237dd;
  --color-primary-rgb: 18 55 221;
  --color-primary-hsl: 229 85% 47%;
}
Gradient
.gradient-1237dd {
  background: linear-gradient(135deg, #1237dd, #5212dd);
}
Colored shadow
.shadow-1237dd {
  box-shadow: 0 8px 24px rgb(18 55 221 / 0.35);
}

#1c39bb Persian Blue ΔE 4.29 #0000ff Blue ΔE 6.55 #4f42b5 Ocean Blue ΔE 6.68 #5218fa Han Purple ΔE 6.97 #3f00ff Ultramarine ΔE 7.05 #1034a6 Egyptian Blue ΔE 7.36 #5a4fcf Iris ΔE 8.06 #edc822 Inverted #505050 Grayscale 

Persian Blue
#1237dd  rgb(18, 55, 221)  hsl(229, 85%, 47%)  Persian Blue
#ddb812  rgb(221, 184, 18)  hsl(49, 85%, 47%)  Metallic Gold
#dd1237  rgb(221, 18, 55)  hsl(349, 85%, 47%)  Crimson
#37dd12  rgb(55, 221, 18)  hsl(109, 85%, 47%)  Lime Green