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#377FDA

#377fda ≈ Tufts Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#377fda is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 21.57% red, 49.8% green and 85.49% blue; printed in CMYK it uses 74.77% cyan, 41.74% magenta, 0% yellow and 14.51% black. Its hue angle is 213.5°, with 68.78% saturation and 53.53% 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 5.21:1 (WCAG AA). The closest named color is Tufts Blue (#417dc1), ΔE 2.55.

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 luminance0.2105

Complementary

  1. #377fda
  2. #da9237

Split complementary

  1. #377fda
  2. #da4137
  3. #d0da37

Analogous

  1. #37d0da
  2. #377fda
  3. #4137da

Triadic

  1. #377fda
  2. #da377f
  3. #7fda37

Tetradic

  1. #377fda
  2. #9237da
  3. #da9237
  4. #7fda37

Square

  1. #377fda
  2. #da37d0
  3. #da9237
  4. #37da41

Monochromatic

  1. #133765
  2. #1f5aa6
  3. #377fda
  4. #78a8e6
  5. #b8d2f2

Shades

#377fda mixed progressively with black.

  1. #377fda
  2. #3272c4
  3. #2c66ae
  4. #275999
  5. #214c83
  6. #1c406d
  7. #163357
  8. #112641
  9. #0b192c
  10. #060d16
  11. #000000

Tints

#377fda mixed progressively with white.

  1. #377fda
  2. #4b8cde
  3. #5f99e1
  4. #73a5e5
  5. #87b2e9
  6. #9bbfed
  7. #afccf0
  8. #c3d9f4
  9. #d7e5f8
  10. #ebf2fb
  11. #ffffff

Tones

#377fda mixed progressively with gray.

  1. #377fda
  2. #3e7fd1
  3. #467fc8
  4. #4d7fbf
  5. #547fb6
  6. #5c80ad
  7. #6380a4
  8. #6a809b
  9. #718092
  10. #798089
  11. #808080

Readable text 4.03:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 5.21:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #7f7f7f ≈ 0.003% of males
Achromatomaly #697fab ≈ 0.001% of males
Protanopia #5387de ≈ 1.01% of males
Deuteranopia #3678d8 ≈ 1.27% of males
Tritanopia #0094a2 ≈ 0.0001% of males
Protanomaly #4984dc ≈ 1.08% of males
Deuteranomaly #367bd9 ≈ 4.63% of males
Tritanomaly #008cbb ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-377fda {
  color: #377fda;
}
Background
.bg-377fda {
  background-color: #377fda;
  color: #000000;
}
Border
.border-377fda {
  border: 2px solid #377fda;
}
CSS variables
:root {
  --color-primary: #377fda;
  --color-primary-rgb: 55 127 218;
  --color-primary-hsl: 214 69% 54%;
}
Gradient
.gradient-377fda {
  background: linear-gradient(135deg, #377fda, #4137da);
}
Colored shadow
.shadow-377fda {
  box-shadow: 0 8px 24px rgb(55 127 218 / 0.35);
}

#417dc1 Tufts Blue ΔE 2.55 #4682b4 Steel Blue ΔE 4.52 #318ce7 Bleu de France ΔE 4.84 #0073cf True Blue ΔE 5.15 #6082b6 Glaucous ΔE 5.72 #0070ff Brandeis Blue ΔE 6.25 #1e90ff Dodger Blue ΔE 6.69 #c88025 Inverted #7f7f7f Grayscale 

Tufts Blue
#377fda  rgb(55, 127, 218)  hsl(214, 69%, 54%)  Tufts Blue
#da9237  rgb(218, 146, 55)  hsl(34, 69%, 54%)  Carrot Orange
#da377f  rgb(218, 55, 127)  hsl(334, 69%, 54%)  Telemagenta
#7fda37  rgb(127, 218, 55)  hsl(94, 69%, 54%)  Yellow Green