PHP code example of s13k / php_oklab_color

1. Go to this page and download the library: Download s13k/php_oklab_color library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

s13k / php_oklab_color example snippets


// Oklab
Oklab\OkColor::oklab_to_linear_srgb(float $L, float $a, float $b): array // [float $r, float $g, float $b]
Oklab\OkColor::linear_srgb_to_oklab(float $r, float $g, float $b): array // [float $L, float $a, float $b]

// Okhsl
Oklab\OkColor::okhsl_to_srgb(float $h, float $s, float $l): array // [float $r, float $g, float $b]
Oklab\OkColor::srgb_to_okhsl(float $r, float $g, float $b): array // [float $h, float $s, float $l]

// Okhsv
Oklab\OkColor::okhsv_to_srgb(float $h, float $s, float $v): array // [float $r, float $g, float $b]
Oklab\OkColor::srgb_to_okhsv(float $r, float $g, float $b): array // [float $h, float $s, float $v]


// Convert HSL (0–360°, 0–100%, 0–100%) to RGB hex
function okhsl_to_hex($h, $s, $l) {
    list($r, $g, $b) = Oklab\OkColor::okhsl_to_srgb($h % 360 / 360, $s / 100, $l / 100);
    return sprintf('#%02x%02x%02x', $r * 255, $g * 255, $b * 255);
}
echo okhsl_to_hex(137, 13, 37); #51594e