Forest
A mid green with the freshness of a spring green.
Create Forest in PHP
Parse the catalog’s canonical value once, then keep the resulting color object throughout the rest of your code.
<?php
use PhpColor\Color\Color;
$forest = Color::parse('#228B22');ColorInterface
$forest
#228b22 · oklch(0.5578 0.1688 142.9)
Build a Forest harmony
tetradic() keeps Forest and adds three partners at equal quarter-turns around the OKLCH hue wheel.
<?php
$harmony = $forest->tetradic();
foreach ($harmony as $color) {
echo $color->toHex().PHP_EOL;
}- 0
#228b22 - 1
#0080c5 - 2
#a14aac - 3
#bc4e00
Generate a Forest scale
Keep the original hue and chroma, then vary OKLCH lightness to produce perceptually ordered steps.
<?php
$oklch = $forest->to('oklch');
foreach ([0.97, 0.92, 0.84, 0.74, 0.66, 0.58, 0.48, 0.40, 0.32, 0.24, 0.16] as $lightness) {
$step = $oklch->withChannel('l', $lightness);
}50
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Format Forest for the web
The same object can emit a compact Hex value, an sRGB CSS function, or its perceptual OKLCH coordinates.
<?php
$hex = $forest->toHex();
$rgb = $forest->toCss('srgb');
$oklch = $forest->to('oklch')->toCss();- hex
#228b22- rgb
rgb(34 139 34)- oklch
oklch(0.557805 0.168781 142.893)