Function __global->rgb_luminance

Definitions

sources/themewizard.php

  • Calculate the luminance of a colour.
  • Visibility: public
  • Is abstract?: No
  • Is static?: No
  • Is final?: No
  • Returns: float

Parameters

Name Type Passed by reference? Variadic? Default Set Range Description
$r float No No required parameter N/A N/A Red
$g float No No required parameter N/A N/A Green
$b float No No required parameter N/A N/A Blue

Returns

  • The luminance of the provided colour
  • Type: float
  • Set: N/A
  • Range: N/A

Preview

Code (PHP)

/**
 * Calculate the luminance of a colour.
 *
 * @param  float $r Red
 * @param  float $g Green
 * @param  float $b Blue
 * @return float The luminance of the provided colour
 */
function rgb_luminance(float $r, float $g, float $b) : float