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#377DBB

#377dbb ≈ Tufts Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#377dbb is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 21.57% red, 49.02% green and 73.33% blue; printed in CMYK it uses 70.59% cyan, 33.16% magenta, 0% yellow and 26.67% black. Its hue angle is 208.18°, with 54.55% saturation and 47.45% 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 4.81:1 (WCAG AA). The closest named color is Tufts Blue (#417dc1), ΔE 2.07.

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 luminance0.1907

Complementary

  1. #377dbb
  2. #bb7537

Split complementary

  1. #377dbb
  2. #bb373b
  3. #bbb737

Analogous

  1. #37bbb7
  2. #377dbb
  3. #373bbb

Triadic

  1. #377dbb
  2. #bb377d
  3. #7dbb37

Tetradic

  1. #377dbb
  2. #7537bb
  3. #bb7537
  4. #7dbb37

Square

  1. #377dbb
  2. #b737bb
  3. #bb7537
  4. #3bbb37

Monochromatic

  1. #142e45
  2. #265580
  3. #377dbb
  4. #6ba2d3
  5. #a6c7e5

Shades

#377dbb mixed progressively with black.

  1. #377dbb
  2. #3271a8
  3. #2c6496
  4. #275883
  5. #214b70
  6. #1c3f5e
  7. #16324b
  8. #112638
  9. #0b1925
  10. #060d13
  11. #000000

Tints

#377dbb mixed progressively with white.

  1. #377dbb
  2. #4b8ac2
  3. #5f97c9
  4. #73a4cf
  5. #87b1d6
  6. #9bbedd
  7. #afcbe4
  8. #c3d8eb
  9. #d7e5f1
  10. #ebf2f8
  11. #ffffff

Tones

#377dbb mixed progressively with gray.

  1. #377dbb
  2. #3e7db5
  3. #467eaf
  4. #4d7ea9
  5. #547ea3
  6. #5c7f9e
  7. #637f98
  8. #6a7f92
  9. #717f8c
  10. #798086
  11. #808080

Readable text 4.36:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 4.81:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #797979 ≈ 0.003% of males
Achromatomaly #657b98 ≈ 0.001% of males
Protanopia #6180be ≈ 1.01% of males
Deuteranopia #4f73ba ≈ 1.27% of males
Tritanopia #008c93 ≈ 0.0001% of males
Protanomaly #537fbd ≈ 1.08% of males
Deuteranomaly #4677ba ≈ 4.63% of males
Tritanomaly #0086a5 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-377dbb {
  color: #377dbb;
}
Background
.bg-377dbb {
  background-color: #377dbb;
  color: #000000;
}
Border
.border-377dbb {
  border: 2px solid #377dbb;
}
CSS variables
:root {
  --color-primary: #377dbb;
  --color-primary-rgb: 55 125 187;
  --color-primary-hsl: 208 55% 47%;
}
Gradient
.gradient-377dbb {
  background: linear-gradient(135deg, #377dbb, #373bbb);
}
Colored shadow
.shadow-377dbb {
  box-shadow: 0 8px 24px rgb(55 125 187 / 0.35);
}

#417dc1 Tufts Blue ΔE 2.07 #4682b4 Steel Blue ΔE 2.38 #0073cf True Blue ΔE 4.11 #0072bb French Blue ΔE 4.49 #6082b6 Glaucous ΔE 6.40 #318ce7 Bleu de France ΔE 6.72 #007ba7 Cerulean ΔE 7.24 #c88244 Inverted #797979 Grayscale 

Tufts Blue
#377dbb  rgb(55, 125, 187)  hsl(208, 55%, 47%)  Tufts Blue
#bb7537  rgb(187, 117, 55)  hsl(28, 55%, 47%)  Copper
#bb377d  rgb(187, 55, 125)  hsl(328, 55%, 47%)  Medium Violet Red
#7dbb37  rgb(125, 187, 55)  hsl(88, 55%, 47%)  Kelly Green