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#237DCB

#237dcb ≈ Tufts Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#237dcb is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 13.73% red, 49.02% green and 79.61% blue; printed in CMYK it uses 82.76% cyan, 38.42% magenta, 0% yellow and 20.39% black. Its hue angle is 207.86°, with 70.59% saturation and 46.67% 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. Black text on this color reaches a contrast ratio of 4.87:1 (WCAG AA). The closest named color is Tufts Blue (#417dc1), ΔE 2.45.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3366cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1934

Complementary

  1. #237dcb
  2. #cb7123

Split complementary

  1. #237dcb
  2. #cb2329
  3. #cbc523

Analogous

  1. #23cbc5
  2. #237dcb
  3. #2329cb

Triadic

  1. #237dcb
  2. #cb237d
  3. #7dcb23

Tetradic

  1. #237dcb
  2. #7123cb
  3. #cb7123
  4. #7dcb23

Square

  1. #237dcb
  2. #c523cb
  3. #cb7123
  4. #29cb23

Monochromatic

  1. #0d2d49
  2. #18558a
  3. #237dcb
  4. #58a2e2
  5. #9ac7ee

Shades

#237dcb mixed progressively with black.

  1. #237dcb
  2. #2071b7
  3. #1c64a2
  4. #19588e
  5. #154b7a
  6. #123f66
  7. #0e3251
  8. #0b263d
  9. #071929
  10. #040d14
  11. #000000

Tints

#237dcb mixed progressively with white.

  1. #237dcb
  2. #398ad0
  3. #4f97d5
  4. #65a4db
  5. #7bb1e0
  6. #91bee5
  7. #a7cbea
  8. #bdd8ef
  9. #d3e5f5
  10. #e9f2fa
  11. #ffffff

Tones

#237dcb mixed progressively with gray.

  1. #237dcb
  2. #2c7dc4
  3. #367ebc
  4. #3f7eb5
  5. #487ead
  6. #527fa6
  7. #5b7f9e
  8. #647f97
  9. #6d7f8f
  10. #778088
  11. #808080

Readable text 4.31:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 4.87:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #7a7a7a ≈ 0.003% of males
Achromatomaly #627ba1 ≈ 0.001% of males
Protanopia #5782ce ≈ 1.01% of males
Deuteranopia #3d73c9 ≈ 1.27% of males
Tritanopia #00909a ≈ 0.0001% of males
Protanomaly #4880cd ≈ 1.08% of males
Deuteranomaly #3477ca ≈ 4.63% of males
Tritanomaly #0089b0 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-237dcb {
  color: #237dcb;
}
Background
.bg-237dcb {
  background-color: #237dcb;
  color: #000000;
}
Border
.border-237dcb {
  border: 2px solid #237dcb;
}
CSS variables
:root {
  --color-primary: #237dcb;
  --color-primary-rgb: 35 125 203;
  --color-primary-hsl: 208 71% 47%;
}
Gradient
.gradient-237dcb {
  background: linear-gradient(135deg, #237dcb, #2329cb);
}
Colored shadow
.shadow-237dcb {
  box-shadow: 0 8px 24px rgb(35 125 203 / 0.35);
}

#417dc1 Tufts Blue ΔE 2.45 #4682b4 Steel Blue ΔE 3.51 #0073cf True Blue ΔE 3.69 #0072bb French Blue ΔE 4.61 #318ce7 Bleu de France ΔE 5.99 #6082b6 Glaucous ΔE 7.23 #0070ff Brandeis Blue ΔE 7.94 #dc8234 Inverted #7a7a7a Grayscale 

Tufts Blue
#237dcb  rgb(35, 125, 203)  hsl(208, 71%, 47%)  Tufts Blue
#cb7123  rgb(203, 113, 35)  hsl(28, 71%, 47%)  Ochre
#cb237d  rgb(203, 35, 125)  hsl(328, 71%, 47%)  Medium Violet Red
#7dcb23  rgb(125, 203, 35)  hsl(88, 71%, 47%)  Yellow Green