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#237AAA

#237aaa ≈ Cerulean

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#237aaa is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 13.73% red, 47.84% green and 66.67% blue; printed in CMYK it uses 79.41% cyan, 28.24% magenta, 0% yellow and 33.33% black. Its hue angle is 201.33°, with 65.85% saturation and 40.2% lightness in HSL. It is a cool color, often associated with openness, freedom and calm. Designers typically use it for technology products, finance and banking and brand accents. White text on this color reaches a contrast ratio of 4.73:1 (WCAG AA). The closest named color is Cerulean (#007ba7), ΔE 2.62.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#336699
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1718

Complementary

  1. #237aaa
  2. #aa5323

Split complementary

  1. #237aaa
  2. #aa2337
  3. #aa9723

Analogous

  1. #23aa97
  2. #237aaa
  3. #2337aa

Triadic

  1. #237aaa
  2. #aa237a
  3. #7aaa23

Tetradic

  1. #237aaa
  2. #5323aa
  3. #aa5323
  4. #7aaa23

Square

  1. #237aaa
  2. #9723aa
  3. #aa5323
  4. #37aa23

Monochromatic

  1. #091f2b
  2. #164c6b
  3. #237aaa
  4. #42a3d8
  5. #81c1e5

Shades

#237aaa mixed progressively with black.

  1. #237aaa
  2. #206e99
  3. #1c6288
  4. #195577
  5. #154966
  6. #123d55
  7. #0e3144
  8. #0b2533
  9. #071822
  10. #040c11
  11. #000000

Tints

#237aaa mixed progressively with white.

  1. #237aaa
  2. #3987b3
  3. #4f95bb
  4. #65a2c4
  5. #7bafcc
  6. #91bdd5
  7. #a7cadd
  8. #bdd7e6
  9. #d3e4ee
  10. #e9f2f7
  11. #ffffff

Tones

#237aaa mixed progressively with gray.

  1. #237aaa
  2. #2c7ba6
  3. #367ba2
  4. #3f7c9d
  5. #487c99
  6. #527d95
  7. #5b7e91
  8. #647e8d
  9. #6d7f88
  10. #777f84
  11. #808080

Readable text 4.73:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.44:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕

Achromatopsia #737373 ≈ 0.003% of males
Achromatomaly #5d768c ≈ 0.001% of males
Protanopia #637aac ≈ 1.01% of males
Deuteranopia #516ea9 ≈ 1.27% of males
Tritanopia #00868b ≈ 0.0001% of males
Protanomaly #517aab ≈ 1.08% of males
Deuteranomaly #4373aa ≈ 4.63% of males
Tritanomaly #008198 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-237aaa {
  color: #237aaa;
}
Background
.bg-237aaa {
  background-color: #237aaa;
  color: #ffffff;
}
Border
.border-237aaa {
  border: 2px solid #237aaa;
}
CSS variables
:root {
  --color-primary: #237aaa;
  --color-primary-rgb: 35 122 170;
  --color-primary-hsl: 201 66% 40%;
}
Gradient
.gradient-237aaa {
  background: linear-gradient(135deg, #237aaa, #2337aa);
}
Colored shadow
.shadow-237aaa {
  box-shadow: 0 8px 24px rgb(35 122 170 / 0.35);
}

#007ba7 Cerulean ΔE 2.62 #4682b4 Steel Blue ΔE 5.02 #0072bb French Blue ΔE 5.04 #417dc1 Tufts Blue ΔE 6.57 #006994 Sea Blue ΔE 6.58 #0073cf True Blue ΔE 6.79 #0067a5 Medium Persian Blue ΔE 7.46 #dc8555 Inverted #737373 Grayscale 

Cerulean
#237aaa  rgb(35, 122, 170)  hsl(201, 66%, 40%)  Cerulean
#aa5323  rgb(170, 83, 35)  hsl(21, 66%, 40%)  Sienna
#aa237a  rgb(170, 35, 122)  hsl(321, 66%, 40%)  Medium Violet Red
#7aaa23  rgb(122, 170, 35)  hsl(81, 66%, 40%)  Apple Green