Create Blue Transparent Base64 Img URL

BlueTransImgDataUrl

var e = document.createElement("canvas")
var c = e.getContext("2d");

e.width = 1

e.height = 1

var d = c.getImageData(0, 0, 1, 1);

d.data[0] = 0;		// R
d.data[1] = 92;		// G
d.data[2] = 170;	// B
d.data[3] = 222;	// A

c.putImageData(d, 0, 0, 0, 0, 1, 1)
e.toDataURL()

// "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2NkiFl1DwADUAHmsr7HFwAAAABJRU5ErkJggg=="