Blue Burst color: hex code #309CD0
Blue Burst has the hex code #309CD0. It is a moderate azure.
In the RGB color model it is made of 18.8% red, 61.2% green and 81.6% blue (48, 156, 208).
Its hue angle is 200°, with 63% saturation and 50% lightness. For print, the CMYK equivalent is 77% cyan, 25% magenta, 0% yellow and 18% black.
Black text is the more readable choice on this background (contrast 6.79:1).
Blue Burst (#309CD0) color codes
| HEX | #309CD0 | |
|---|---|---|
| RGB | rgb(48, 156, 208) | |
| RGB percent | rgb(18.8%, 61.2%, 81.6%) | |
| HSL | hsl(200, 63%, 50%) | |
| HSV / HSB | hsv(200, 77%, 82%) | |
| CMYK | cmyk(77%, 25%, 0%, 18%) | |
| CIE LAB | lab(60.74, -12.63, -35.18) | |
| CIE LCH | lch(60.74, 37.38, 250.25) | |
| CIE XYZ | xyz(24.488, 28.956, 63.961) | |
| Decimal | 3185872 | |
| Short hex | None (no 3-digit form) |
Color harmonies
Colors that go with Blue Burst, based on their position on the color wheel.
Complementary
The color opposite on the color wheel (180°). Strongest contrast.
Analogous
Neighbors 30° either side. Calm, natural combinations.
Split complementary
The two colors next to the complement (150° and 210°).
Triadic
Three colors evenly spaced, 120° apart.
Tetradic (square)
Four colors 90° apart.
Shades, tints and tones
Shades (darker, mixed with black)
Tints (lighter, mixed with white)
Tones (mixed with gray)
Contrast and accessibility
| Text on #309CD0 | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 6.79:1 | Pass | Fail | Pass |
| Sample text | 3.09:1 | Fail | Fail | Pass |
| #309CD0 as text on | Ratio | AA | AAA | AA large |
|---|---|---|---|---|
| Sample text | 3.09:1 | Fail | Fail | Pass |
| Sample text | 6.79:1 | Pass | Fail | Pass |
WCAG 2 asks for 4.5:1 for normal text (AA), 7:1 for AAA, and 3:1 for large text. Check other pairs.
Color blindness simulation
How #309CD0 looks to people with the most common types of color vision deficiency.
#839bd2Protanopia
no red cones#6d8ccfDeuteranopia
no green cones#00aaaeTritanopia
no blue cones#929292Achromatopsia
no color vision
CSS examples
.background { background-color: #309cd0; }
.text { color: #309cd0; }
.border { border: 2px solid #309cd0; }
.transparent { background-color: rgb(48 156 208 / 50%); }
.gradient { background: linear-gradient(to right, #309cd0, #304cd0); }Similar colors
#4b9cd3Carolina Blue#57a1ceSub-Zero#2299ddHomeworld#579acaCanadian Tuxedo#44aaddThalassophile#4ca8e0High Blue#0a91bfSwimmer#55a9d6Cousteau
See #309CD0 on its hex code page
Questions
- What color is #309CD0?
- #309CD0 is a moderate azure known as Blue Burst. It belongs to the blue family of colors.
- What is the RGB value of Blue Burst?
- The RGB value is 48, 156, 208: 48 red, 156 green and 208 blue on a 0 to 255 scale.
- What is the complementary color of Blue Burst?
- The complementary color is #D06430, found by rotating the hue 180° on the color wheel.
- Is black or white text better on #309CD0?
- Black text. Black text has a contrast ratio of 6.79:1 and white text 3.09:1. WCAG asks for at least 4.5:1 for normal text.