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#309CD4

#309cd4 ≈ Carolina Blue

  • azure
  • Lightness: medium
  • Saturation: strong
  • Cool
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#309cd4 is a color from the azure family, with medium lightness and strong saturation. In the RGB model it is made of 18.82% red, 61.18% green and 83.14% blue; printed in CMYK it uses 77.36% cyan, 26.42% magenta, 0% yellow and 16.86% black. Its hue angle is 200.49°, with 65.6% saturation and 50.98% 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 6.83:1 (WCAG AA). The closest named color is Carolina Blue (#56a0d3), ΔE 3.31.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3399cc
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.2916

Complementary

  1. #309cd4
  2. #d46830

Split complementary

  1. #309cd4
  2. #d4304a
  3. #d4ba30

Analogous

  1. #30d4ba
  2. #309cd4
  3. #304ad4

Triadic

  1. #309cd4
  2. #d4309c
  3. #9cd430

Tetradic

  1. #309cd4
  2. #6830d4
  3. #d46830
  4. #9cd430

Square

  1. #309cd4
  2. #ba30d4
  3. #d46830
  4. #4ad430

Monochromatic

  1. #124159
  2. #206f98
  3. #309cd4
  4. #6fbae1
  5. #afd9ee

Shades

#309cd4 mixed progressively with black.

  1. #309cd4
  2. #2b8cbf
  3. #267daa
  4. #226d94
  5. #1d5e7f
  6. #184e6a
  7. #133e55
  8. #0e2f40
  9. #0a1f2a
  10. #051015
  11. #000000

Tints

#309cd4 mixed progressively with white.

  1. #309cd4
  2. #45a6d8
  3. #59b0dd
  4. #6ebae1
  5. #83c4e5
  6. #98ceea
  7. #acd7ee
  8. #c1e1f2
  9. #d6ebf6
  10. #eaf5fb
  11. #ffffff

Tones

#309cd4 mixed progressively with gray.

  1. #309cd4
  2. #3899cc
  3. #4096c3
  4. #4894bb
  5. #5091b2
  6. #588eaa
  7. #608ba2
  8. #688899
  9. #708691
  10. #788388
  11. #808080

Readable text 3.07:1 AA ✕ AA Large ✓ AAA ✕ AAA Large ✕
Readable text 6.83:1 AA ✓ AA Large ✓ AAA ✕ AAA Large ✓

Achromatopsia #939393 ≈ 0.003% of males
Achromatomaly #7897b1 ≈ 0.001% of males
Protanopia #819bd7 ≈ 1.01% of males
Deuteranopia #6b8cd3 ≈ 1.27% of males
Tritanopia #00aaaf ≈ 0.0001% of males
Protanomaly #6a9cd6 ≈ 1.08% of males
Deuteranomaly #5993d3 ≈ 4.63% of males
Tritanomaly #00a5bf ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-309cd4 {
  color: #309cd4;
}
Background
.bg-309cd4 {
  background-color: #309cd4;
  color: #000000;
}
Border
.border-309cd4 {
  border: 2px solid #309cd4;
}
CSS variables
:root {
  --color-primary: #309cd4;
  --color-primary-rgb: 48 156 212;
  --color-primary-hsl: 200 66% 51%;
}
Gradient
.gradient-309cd4 {
  background: linear-gradient(135deg, #309cd4, #304ad4);
}
Colored shadow
.shadow-309cd4 {
  box-shadow: 0 8px 24px rgb(48 156 212 / 0.35);
}

#56a0d3 Carolina Blue ΔE 3.31 #71a6d2 Iceberg ΔE 6.93 #0095b6 Bondi Blue ΔE 8.25 #318ce7 Bleu de France ΔE 8.40 #5d8aa8 Air Force Blue ΔE 8.54 #1e90ff Dodger Blue ΔE 8.83 #73a9c2 Moonstone Blue ΔE 8.97 #cf632b Inverted #939393 Grayscale 

Carolina Blue
#309cd4  rgb(48, 156, 212)  hsl(200, 66%, 51%)  Carolina Blue
#d46830  rgb(212, 104, 48)  hsl(20, 66%, 51%)  Chocolate
#d4309c  rgb(212, 48, 156)  hsl(320, 66%, 51%)  Mulberry
#9cd430  rgb(156, 212, 48)  hsl(80, 66%, 51%)  Yellow Green