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#304CBB

#304cbb ≈ Sapphire

  • blue
  • Lightness: medium
  • Saturation: strong
  • Cool
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#304cbb is a color from the blue family, with medium lightness and strong saturation. In the RGB model it is made of 18.82% red, 29.8% green and 73.33% blue; printed in CMYK it uses 74.33% cyan, 59.36% magenta, 0% yellow and 26.67% black. Its hue angle is 227.91°, with 59.15% saturation and 46.08% lightness in HSL. It is a cool color, often associated with trust, stability and focus. Designers typically use it for technology products, finance and banking and brand accents. White text on this color reaches a contrast ratio of 7.3:1 (WCAG AAA). The closest named color is Sapphire (#0f52ba), ΔE 3.91.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3333cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.0939

Complementary

  1. #304cbb
  2. #bb9f30

Split complementary

  1. #304cbb
  2. #bb5930
  3. #92bb30

Analogous

  1. #3092bb
  2. #304cbb
  3. #5930bb

Triadic

  1. #304cbb
  2. #bb304c
  3. #4cbb30

Tetradic

  1. #304cbb
  2. #9f30bb
  3. #bb9f30
  4. #4cbb30

Square

  1. #304cbb
  2. #bb3092
  3. #bb9f30
  4. #30bb59

Monochromatic

  1. #111b41
  2. #20337e
  3. #304cbb
  4. #6179d6
  5. #9eace6

Shades

#304cbb mixed progressively with black.

  1. #304cbb
  2. #2b44a8
  3. #263d96
  4. #223583
  5. #1d2e70
  6. #18265e
  7. #131e4b
  8. #0e1738
  9. #0a0f25
  10. #050813
  11. #000000

Tints

#304cbb mixed progressively with white.

  1. #304cbb
  2. #455ec2
  3. #5970c9
  4. #6e82cf
  5. #8394d6
  6. #98a6dd
  7. #acb7e4
  8. #c1c9eb
  9. #d6dbf1
  10. #eaedf8
  11. #ffffff

Tones

#304cbb mixed progressively with gray.

  1. #304cbb
  2. #3851b5
  3. #4056af
  4. #485ca9
  5. #5061a3
  6. #58669e
  7. #606b98
  8. #687092
  9. #70768c
  10. #787b86
  11. #808080

Readable text 7.3:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓
Readable text 2.88:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕

Achromatopsia #565656 ≈ 0.003% of males
Achromatomaly #4a528a ≈ 0.001% of males
Protanopia #005dbf ≈ 1.01% of males
Deuteranopia #0050b9 ≈ 1.27% of males
Tritanopia #00687c ≈ 0.0001% of males
Protanomaly #0057bd ≈ 1.08% of males
Deuteranomaly #004eba ≈ 4.63% of males
Tritanomaly #005e99 ≈ 0.0002% of males
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Text in this color

Background in this color

Border in this color

Text color
.text-304cbb {
  color: #304cbb;
}
Background
.bg-304cbb {
  background-color: #304cbb;
  color: #ffffff;
}
Border
.border-304cbb {
  border: 2px solid #304cbb;
}
CSS variables
:root {
  --color-primary: #304cbb;
  --color-primary-rgb: 48 76 187;
  --color-primary-hsl: 228 59% 46%;
}
Gradient
.gradient-304cbb {
  background: linear-gradient(135deg, #304cbb, #5930bb);
}
Colored shadow
.shadow-304cbb {
  box-shadow: 0 8px 24px rgb(48 76 187 / 0.35);
}

#0f52ba Sapphire ΔE 3.91 #0047ab Cobalt Blue ΔE 4.29 #1c39bb Persian Blue ΔE 5.59 #4f42b5 Ocean Blue ΔE 5.90 #5a4fcf Iris ΔE 6.67 #1034a6 Egyptian Blue ΔE 7.53 #0f4d92 Yale Blue ΔE 7.74 #cfb344 Inverted #565656 Grayscale 

Sapphire
#304cbb  rgb(48, 76, 187)  hsl(228, 59%, 46%)  Sapphire
#bb9f30  rgb(187, 159, 48)  hsl(48, 59%, 46%)  Brass
#bb304c  rgb(187, 48, 76)  hsl(348, 59%, 46%)  Cardinal
#4cbb30  rgb(76, 187, 48)  hsl(108, 59%, 46%)  Kelly Green