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#183A8A

#183a8a ≈ Smalt

  • blue
  • Lightness: low
  • Saturation: moderate
  • Cool
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#183a8a is a color from the blue family, with low lightness and moderate saturation. In the RGB model it is made of 9.41% red, 22.75% green and 54.12% blue; printed in CMYK it uses 82.61% cyan, 57.97% magenta, 0% yellow and 45.88% black. Its hue angle is 222.11°, with 70.37% saturation and 31.76% 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 corporate identities. White text on this color reaches a contrast ratio of 10.44:1 (WCAG AAA). The closest named color is Smalt (#003399), ΔE 3.46.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#003399
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0506

Complementary

  1. #183a8a
  2. #8a6818

Split complementary

  1. #183a8a
  2. #8a2f18
  3. #738a18

Analogous

  1. #18738a
  2. #183a8a
  3. #2f188a

Triadic

  1. #183a8a
  2. #8a183a
  3. #3a8a18

Tetradic

  1. #183a8a
  2. #68188a
  3. #8a6818
  4. #3a8a18

Square

  1. #183a8a
  2. #8a1873
  3. #8a6818
  4. #188a2f

Monochromatic

  1. #030711
  2. #0d1f49
  3. #183a8a
  4. #2355cb
  5. #5982e2

Shades

#183a8a mixed progressively with black.

  1. #183a8a
  2. #16347c
  3. #132e6e
  4. #112961
  5. #0e2353
  6. #0c1d45
  7. #0a1737
  8. #071129
  9. #050c1c
  10. #02060e
  11. #000000

Tints

#183a8a mixed progressively with white.

  1. #183a8a
  2. #2f4e96
  3. #4661a1
  4. #5d75ad
  5. #7489b9
  6. #8c9dc5
  7. #a3b0d0
  8. #bac4dc
  9. #d1d8e8
  10. #e8ebf3
  11. #ffffff

Tones

#183a8a mixed progressively with gray.

  1. #183a8a
  2. #224189
  3. #2d4888
  4. #374f87
  5. #425686
  6. #4c5d85
  7. #566484
  8. #616b83
  9. #6b7282
  10. #767981
  11. #808080

Readable text 10.44:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.01:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #404040 ≈ 0.003% of males
Achromatomaly #343d66 ≈ 0.001% of males
Protanopia #00458d ≈ 1.01% of males
Deuteranopia #003b88 ≈ 1.27% of males
Tritanopia #004e5c ≈ 0.0001% of males
Protanomaly #00418c ≈ 1.08% of males
Deuteranomaly #003a89 ≈ 4.63% of males
Tritanomaly #004771 ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-183a8a {
  color: #183a8a;
}
Background
.bg-183a8a {
  background-color: #183a8a;
  color: #ffffff;
}
Border
.border-183a8a {
  border: 2px solid #183a8a;
}
CSS variables
:root {
  --color-primary: #183a8a;
  --color-primary-rgb: 24 58 138;
  --color-primary-hsl: 222 70% 32%;
}
Gradient
.gradient-183a8a {
  background: linear-gradient(135deg, #183a8a, #2f188a);
}
Colored shadow
.shadow-183a8a {
  box-shadow: 0 8px 24px rgb(24 58 138 / 0.35);
}

#003399 Smalt ΔE 3.46 #1034a6 Egyptian Blue ΔE 5.04 #0047ab Cobalt Blue ΔE 5.76 #0f4d92 Yale Blue ΔE 7.09 #1c39bb Persian Blue ΔE 7.42 #483d8b Dark Slate Blue ΔE 7.59 #002395 Imperial Blue ΔE 7.60 #e7c575 Inverted #404040 Grayscale 

Smalt
#183a8a  rgb(24, 58, 138)  hsl(222, 70%, 32%)  Smalt
#8a6818  rgb(138, 104, 24)  hsl(42, 70%, 32%)  Golden Brown
#8a183a  rgb(138, 24, 58)  hsl(342, 70%, 32%)  Claret
#3a8a18  rgb(58, 138, 24)  hsl(102, 70%, 32%)  Forest Green