ColorTool
Log in
#337F9D

#337f9d ≈ Cerulean

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

#337f9d is a color from the azure family, with medium lightness and moderate saturation. In the RGB model it is made of 20% red, 49.8% green and 61.57% blue; printed in CMYK it uses 67.52% cyan, 19.11% magenta, 0% yellow and 38.43% black. Its hue angle is 196.98°, with 50.96% saturation and 40.78% 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 Cerulean (#007ba7), ΔE 4.13.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#336699
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.1832

Complementary

  1. #337f9d
  2. #9d5133

Split complementary

  1. #337f9d
  2. #9d334a
  3. #9d8633

Analogous

  1. #339d86
  2. #337f9d
  3. #334a9d

Triadic

  1. #337f9d
  2. #9d337f
  3. #7f9d33

Tetradic

  1. #337f9d
  2. #51339d
  3. #9d5133
  4. #7f9d33

Square

  1. #337f9d
  2. #86339d
  3. #9d5133
  4. #4a9d33

Monochromatic

  1. #0d2229
  2. #205063
  3. #337f9d
  4. #55a7c8
  5. #8fc5da

Shades

#337f9d mixed progressively with black.

  1. #337f9d
  2. #2e728d
  3. #29667e
  4. #24596e
  5. #1f4c5e
  6. #1a404f
  7. #14333f
  8. #0f262f
  9. #0a191f
  10. #050d10
  11. #000000

Tints

#337f9d mixed progressively with white.

  1. #337f9d
  2. #478ca7
  3. #5c99b1
  4. #70a5ba
  5. #85b2c4
  6. #99bfce
  7. #adccd8
  8. #c2d9e2
  9. #d6e5eb
  10. #ebf2f5
  11. #ffffff

Tones

#337f9d mixed progressively with gray.

  1. #337f9d
  2. #3b7f9a
  3. #427f97
  4. #4a7f94
  5. #527f91
  6. #5a808f
  7. #61808c
  8. #698089
  9. #718086
  10. #788083
  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 #627a88 ≈ 0.001% of males
Protanopia #6f7d9f ≈ 1.01% of males
Deuteranopia #60729d ≈ 1.27% of males
Tritanopia #008889 ≈ 0.0001% of males
Protanomaly #5d7e9e ≈ 1.08% of males
Deuteranomaly #52779d ≈ 4.63% of males
Tritanomaly #008491 ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-337f9d {
  color: #337f9d;
}
Background
.bg-337f9d {
  background-color: #337f9d;
  color: #000000;
}
Border
.border-337f9d {
  border: 2px solid #337f9d;
}
CSS variables
:root {
  --color-primary: #337f9d;
  --color-primary-rgb: 51 127 157;
  --color-primary-hsl: 197 51% 41%;
}
Gradient
.gradient-337f9d {
  background: linear-gradient(135deg, #337f9d, #334a9d);
}
Colored shadow
.shadow-337f9d {
  box-shadow: 0 8px 24px rgb(51 127 157 / 0.35);
}

#007ba7 Cerulean ΔE 4.13 #367588 Teal Blue ΔE 5.22 #5d8aa8 Air Force Blue ΔE 7.11 #4682b4 Steel Blue ΔE 7.79 #0095b6 Bondi Blue ΔE 8.04 #006994 Sea Blue ΔE 9.14 #417dc1 Tufts Blue ΔE 10.61 #cc8062 Inverted #777777 Grayscale 

Cerulean
#337f9d  rgb(51, 127, 157)  hsl(197, 51%, 41%)  Cerulean
#9d5133  rgb(157, 81, 51)  hsl(17, 51%, 41%)  Sienna
#9d337f  rgb(157, 51, 127)  hsl(317, 51%, 41%)  Deep Plum
#7f9d33  rgb(127, 157, 51)  hsl(77, 51%, 41%)  Olive Drab