ColorTool
Log in
#307CC3

#307cc3 ≈ Tufts Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
Check contrast Explore in graph Random color

#307cc3 is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 18.82% red, 48.63% green and 76.47% blue; printed in CMYK it uses 75.38% cyan, 36.41% magenta, 0% yellow and 23.53% black. Its hue angle is 208.98°, with 60.49% saturation and 47.65% 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 4.8:1 (WCAG AA). The closest named color is Tufts Blue (#417dc1), ΔE 1.82.

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 luminance0.1898

Complementary

  1. #307cc3
  2. #c37730

Split complementary

  1. #307cc3
  2. #c33033
  3. #c3c130

Analogous

  1. #30c3c1
  2. #307cc3
  3. #3033c3

Triadic

  1. #307cc3
  2. #c3307c
  3. #7cc330

Tetradic

  1. #307cc3
  2. #7730c3
  3. #c37730
  4. #7cc330

Square

  1. #307cc3
  2. #c130c3
  3. #c37730
  4. #33c330

Monochromatic

  1. #122e48
  2. #215586
  3. #307cc3
  4. #66a2d9
  5. #a4c7e8

Shades

#307cc3 mixed progressively with black.

  1. #307cc3
  2. #2b70b0
  3. #26639c
  4. #225789
  5. #1d4a75
  6. #183e62
  7. #13324e
  8. #0e253b
  9. #0a1927
  10. #050c14
  11. #000000

Tints

#307cc3 mixed progressively with white.

  1. #307cc3
  2. #4589c9
  3. #5996cf
  4. #6ea3d5
  5. #83b0db
  6. #98bee1
  7. #accbe7
  8. #c1d8ed
  9. #d6e5f3
  10. #eaf2f9
  11. #ffffff

Tones

#307cc3 mixed progressively with gray.

  1. #307cc3
  2. #387cbc
  3. #407db6
  4. #487daf
  5. #507ea8
  6. #587ea2
  7. #607e9b
  8. #687f94
  9. #707f8d
  10. #788087
  11. #808080

Readable text 4.38:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 4.8:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #797979 ≈ 0.003% of males
Achromatomaly #637a9c ≈ 0.001% of males
Protanopia #5b80c6 ≈ 1.01% of males
Deuteranopia #4572c2 ≈ 1.27% of males
Tritanopia #008d96 ≈ 0.0001% of males
Protanomaly #4d7ec5 ≈ 1.08% of males
Deuteranomaly #3e76c2 ≈ 4.63% of males
Tritanomaly #0086aa ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-307cc3 {
  color: #307cc3;
}
Background
.bg-307cc3 {
  background-color: #307cc3;
  color: #000000;
}
Border
.border-307cc3 {
  border: 2px solid #307cc3;
}
CSS variables
:root {
  --color-primary: #307cc3;
  --color-primary-rgb: 48 124 195;
  --color-primary-hsl: 209 60% 48%;
}
Gradient
.gradient-307cc3 {
  background: linear-gradient(135deg, #307cc3, #3033c3);
}
Colored shadow
.shadow-307cc3 {
  box-shadow: 0 8px 24px rgb(48 124 195 / 0.35);
}

#417dc1 Tufts Blue ΔE 1.82 #4682b4 Steel Blue ΔE 3.18 #0073cf True Blue ΔE 3.41 #0072bb French Blue ΔE 4.28 #318ce7 Bleu de France ΔE 6.56 #6082b6 Glaucous ΔE 6.63 #0070ff Brandeis Blue ΔE 7.72 #cf833c Inverted #797979 Grayscale 

Tufts Blue
#307cc3  rgb(48, 124, 195)  hsl(209, 60%, 48%)  Tufts Blue
#c37730  rgb(195, 119, 48)  hsl(29, 60%, 48%)  Ochre
#c3307c  rgb(195, 48, 124)  hsl(329, 60%, 48%)  Medium Violet Red
#7cc330  rgb(124, 195, 48)  hsl(89, 60%, 48%)  Yellow Green