ColorTool
Log in
#309FFB

#309ffb ≈ Carolina Blue

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

#309ffb is a color from the azure family, with medium lightness and vivid saturation. In the RGB model it is made of 18.82% red, 62.35% green and 98.43% blue; printed in CMYK it uses 80.88% cyan, 36.65% magenta, 0% yellow and 1.57% black. Its hue angle is 207.19°, with 96.21% saturation and 58.63% 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 call-to-action buttons. Black text on this color reaches a contrast ratio of 7.48:1 (WCAG AAA). The closest named color is Carolina Blue (#56a0d3), ΔE 4.88.

Description generated from the measured properties of this color.

HEX
RGB
RGB percent
CMY
CMYK
HSL
HSV / HSB
Web safe#3399ff
CIE-LAB
XYZ
xyY
CIE-LCH
CIE-LUV
Hunter-Lab
OKLab
Binary
Decimal
Relative luminance0.3239

Complementary

  1. #309ffb
  2. #fb8c30

Split complementary

  1. #309ffb
  2. #fb303a
  3. #fbf130

Analogous

  1. #30fbf1
  2. #309ffb
  3. #303afb

Triadic

  1. #309ffb
  2. #fb309f
  3. #9ffb30

Tetradic

  1. #309ffb
  2. #8c30fb
  3. #fb8c30
  4. #9ffb30

Square

  1. #309ffb
  2. #f130fb
  3. #fb8c30
  4. #3afb30

Monochromatic

  1. #03508f
  2. #0479da
  3. #309ffb
  4. #7bc2fc
  5. #c6e5fe

Shades

#309ffb mixed progressively with black.

  1. #309ffb
  2. #2b8fe2
  3. #267fc9
  4. #226fb0
  5. #1d5f97
  6. #18507e
  7. #134064
  8. #0e304b
  9. #0a2032
  10. #051019
  11. #000000

Tints

#309ffb mixed progressively with white.

  1. #309ffb
  2. #45a9fb
  3. #59b2fc
  4. #6ebcfc
  5. #83c5fd
  6. #98cffd
  7. #acd9fd
  8. #c1e2fe
  9. #d6ecfe
  10. #eaf5ff
  11. #ffffff

Tones

#309ffb mixed progressively with gray.

  1. #309ffb
  2. #389cef
  3. #4099e2
  4. #4896d6
  5. #5093ca
  6. #5890be
  7. #608cb1
  8. #6889a5
  9. #708699
  10. #78838c
  11. #808080

Readable text 2.81:1 AA ✕ AA Large ✕ AAA ✕ AAA Large ✕
Readable text 7.48:1 AA ✓ AA Large ✓ AAA ✓ AAA Large ✓

Achromatopsia #9a9a9a ≈ 0.003% of males
Achromatomaly #7d9cc8 ≈ 0.001% of males
Protanopia #73a4ff ≈ 1.01% of males
Deuteranopia #5492f9 ≈ 1.27% of males
Tritanopia #00b5c1 ≈ 0.0001% of males
Protanomaly #5fa2fd ≈ 1.08% of males
Deuteranomaly #4897fa ≈ 4.63% of males
Tritanomaly #00addb ≈ 0.0002% of males
Simulate on your own image

Text in this color

Background in this color

Border in this color

Text color
.text-309ffb {
  color: #309ffb;
}
Background
.bg-309ffb {
  background-color: #309ffb;
  color: #000000;
}
Border
.border-309ffb {
  border: 2px solid #309ffb;
}
CSS variables
:root {
  --color-primary: #309ffb;
  --color-primary-rgb: 48 159 251;
  --color-primary-hsl: 207 96% 59%;
}
Gradient
.gradient-309ffb {
  background: linear-gradient(135deg, #309ffb, #303afb);
}
Colored shadow
.shadow-309ffb {
  box-shadow: 0 8px 24px rgb(48 159 251 / 0.35);
}

#56a0d3 Carolina Blue ΔE 4.88 #1e90ff Dodger Blue ΔE 5.02 #318ce7 Bleu de France ΔE 6.29 #71a6d2 Iceberg ΔE 6.35 #5b92e5 United Nations Blue ΔE 6.79 #6495ed Cornflower Blue ΔE 7.47 #73c2fb Maya Blue ΔE 10.36 #cf6004 Inverted #9a9a9a Grayscale 

Carolina Blue
#309ffb  rgb(48, 159, 251)  hsl(207, 96%, 59%)  Carolina Blue
#fb8c30  rgb(251, 140, 48)  hsl(27, 96%, 59%)  Cadmium Orange
#fb309f  rgb(251, 48, 159)  hsl(327, 96%, 59%)  Persian Rose
#9ffb30  rgb(159, 251, 48)  hsl(87, 96%, 59%)  Green Yellow