ColorTool
Log in
#183DDD

#183ddd ≈ Persian Blue

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

#183ddd is a color from the blue family, with medium lightness and vivid saturation. In the RGB model it is made of 9.41% red, 23.92% green and 86.67% blue; printed in CMYK it uses 89.14% cyan, 72.4% magenta, 0% yellow and 13.33% black. Its hue angle is 228.73°, with 80.41% saturation and 48.04% 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 7.64:1 (WCAG AAA). The closest named color is Persian Blue (#1c39bb), ΔE 4.5.

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 luminance0.0875

Complementary

  1. #183ddd
  2. #ddb818

Split complementary

  1. #183ddd
  2. #dd5518
  3. #a0dd18

Analogous

  1. #18a0dd
  2. #183ddd
  3. #5518dd

Triadic

  1. #183ddd
  2. #dd183d
  3. #3ddd18

Tetradic

  1. #183ddd
  2. #b818dd
  3. #ddb818
  4. #3ddd18

Square

  1. #183ddd
  2. #dd18a0
  3. #ddb818
  4. #18dd55

Monochromatic

  1. #091753
  2. #112a98
  3. #183ddd
  4. #5571ed
  5. #9aabf4

Shades

#183ddd mixed progressively with black.

  1. #183ddd
  2. #1637c7
  3. #1331b1
  4. #112b9b
  5. #0e2585
  6. #0c1f6f
  7. #0a1858
  8. #071242
  9. #050c2c
  10. #020616
  11. #000000

Tints

#183ddd mixed progressively with white.

  1. #183ddd
  2. #2f50e0
  3. #4664e4
  4. #5d77e7
  5. #748beb
  6. #8c9eee
  7. #a3b1f1
  8. #bac5f5
  9. #d1d8f8
  10. #e8ecfc
  11. #ffffff

Tones

#183ddd mixed progressively with gray.

  1. #183ddd
  2. #2244d4
  3. #2d4aca
  4. #3751c1
  5. #4258b8
  6. #4c5faf
  7. #5665a5
  8. #616c9c
  9. #6b7393
  10. #767989
  11. #808080

Readable text 7.64:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.75:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #535353 ≈ 0.003% of males
Achromatomaly #434b9e ≈ 0.001% of males
Protanopia #005de2 ≈ 1.01% of males
Deuteranopia #004ada ≈ 1.27% of males
Tritanopia #006c89 ≈ 0.0001% of males
Protanomaly #0052e0 ≈ 1.08% of males
Deuteranomaly #0045db ≈ 4.63% of males
Tritanomaly #005db1 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-183ddd {
  color: #183ddd;
}
Background
.bg-183ddd {
  background-color: #183ddd;
  color: #ffffff;
}
Border
.border-183ddd {
  border: 2px solid #183ddd;
}
CSS variables
:root {
  --color-primary: #183ddd;
  --color-primary-rgb: 24 61 221;
  --color-primary-hsl: 229 80% 48%;
}
Gradient
.gradient-183ddd {
  background: linear-gradient(135deg, #183ddd, #5518dd);
}
Colored shadow
.shadow-183ddd {
  box-shadow: 0 8px 24px rgb(24 61 221 / 0.35);
}

#1c39bb Persian Blue ΔE 4.50 #4f42b5 Ocean Blue ΔE 6.37 #5a4fcf Iris ΔE 7.07 #5218fa Han Purple ΔE 7.67 #1034a6 Egyptian Blue ΔE 7.73 #0000ff Blue ΔE 7.75 #6050dc Majorelle Blue ΔE 7.93 #e7c222 Inverted #535353 Grayscale 

Persian Blue
#183ddd  rgb(24, 61, 221)  hsl(229, 80%, 48%)  Persian Blue
#ddb818  rgb(221, 184, 24)  hsl(49, 80%, 48%)  Metallic Gold
#dd183d  rgb(221, 24, 61)  hsl(349, 80%, 48%)  Crimson
#3ddd18  rgb(61, 221, 24)  hsl(109, 80%, 48%)  Lime Green