Gets the blue value of a color.
blue() extracts the blue value from a p5.Color object, an array of color components, or a CSS color string.
By default, blue() returns a color's blue value in the range 0 to 255. If the colorMode() is set to RGB, it returns the blue value in the given range.
In p5.strands shader callbacks, blue() operates on vec4 values and returns the blue channel as a normalized value in the 0–1 range. colorMode() has no effect inside shader callbacks.
Examples
Syntax
blue(color)
Parameters
color
p5.Color|Number[]|String: p5.Color object, array of color components, or CSS color string.
Returns
Number: the blue value.
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