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#377ABB

#377abb ≈ Tufts Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#377abb is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 21.57% red, 47.84% green and 73.33% blue; printed in CMYK it uses 70.59% cyan, 34.76% magenta, 0% yellow and 26.67% black. Its hue angle is 209.55°, 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 4.66:1 (WCAG AA). The closest named color is Tufts Blue (#417dc1), ΔE 1.87.

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 luminance0.1832

Complementary

  1. #377abb
  2. #bb7837

Split complementary

  1. #377abb
  2. #bb3738
  3. #bbba37

Analogous

  1. #37bbba
  2. #377abb
  3. #3738bb

Triadic

  1. #377abb
  2. #bb377a
  3. #7abb37

Tetradic

  1. #377abb
  2. #7837bb
  3. #bb7837
  4. #7abb37

Square

  1. #377abb
  2. #ba37bb
  3. #bb7837
  4. #38bb37

Monochromatic

  1. #142d45
  2. #265380
  3. #377abb
  4. #6ba0d3
  5. #a6c6e5

Shades

#377abb mixed progressively with black.

  1. #377abb
  2. #326ea8
  3. #2c6296
  4. #275583
  5. #214970
  6. #1c3d5e
  7. #16314b
  8. #112538
  9. #0b1825
  10. #060c13
  11. #000000

Tints

#377abb mixed progressively with white.

  1. #377abb
  2. #4b87c2
  3. #5f95c9
  4. #73a2cf
  5. #87afd6
  6. #9bbddd
  7. #afcae4
  8. #c3d7eb
  9. #d7e4f1
  10. #ebf2f8
  11. #ffffff

Tones

#377abb mixed progressively with gray.

  1. #377abb
  2. #3e7bb5
  3. #467baf
  4. #4d7ca9
  5. #547ca3
  6. #5c7d9e
  7. #637e98
  8. #6a7e92
  9. #717f8c
  10. #797f86
  11. #808080

Readable text 4.5:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓
Readable text 4.66:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #777777 ≈ 0.003% of males
Achromatomaly #637897 ≈ 0.001% of males
Protanopia #5d7dbe ≈ 1.01% of males
Deuteranopia #4a71ba ≈ 1.27% of males
Tritanopia #008992 ≈ 0.0001% of males
Protanomaly #507cbd ≈ 1.08% of males
Deuteranomaly #4375ba ≈ 4.63% of males
Tritanomaly #0083a4 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-377abb {
  color: #377abb;
}
Background
.bg-377abb {
  background-color: #377abb;
  color: #000000;
}
Border
.border-377abb {
  border: 2px solid #377abb;
}
CSS variables
:root {
  --color-primary: #377abb;
  --color-primary-rgb: 55 122 187;
  --color-primary-hsl: 210 55% 47%;
}
Gradient
.gradient-377abb {
  background: linear-gradient(135deg, #377abb, #3738bb);
}
Colored shadow
.shadow-377abb {
  box-shadow: 0 8px 24px rgb(55 122 187 / 0.35);
}

#417dc1 Tufts Blue ΔE 1.87 #0073cf True Blue ΔE 3.12 #4682b4 Steel Blue ΔE 3.39 #0072bb French Blue ΔE 3.79 #6082b6 Glaucous ΔE 6.39 #436b95 Queen Blue ΔE 7.03 #318ce7 Bleu de France ΔE 7.55 #c88544 Inverted #777777 Grayscale 

Tufts Blue
#377abb  rgb(55, 122, 187)  hsl(210, 55%, 47%)  Tufts Blue
#bb7837  rgb(187, 120, 55)  hsl(30, 55%, 47%)  Copper
#bb377a  rgb(187, 55, 122)  hsl(330, 55%, 47%)  Medium Violet Red
#7abb37  rgb(122, 187, 55)  hsl(90, 55%, 47%)  Kelly Green