Chartreuse
A light lime with the freshness of a spring lime.
Create Chartreuse 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;
$chartreuse = Color::parse('#A3E635');ColorInterface
$chartreuse
#a3e635 · oklch(0.8493 0.2073 128.8)
Build a Chartreuse harmony
tetradic() keeps Chartreuse and adds three partners at equal quarter-turns around the OKLCH hue wheel.
<?php
$harmony = $chartreuse->tetradic();
foreach ($harmony as $color) {
echo $color->toHex().PHP_EOL;
}- 0
#a3e635 - 1
#00eaff - 2
#f5a3ff - 3
#ff955d
Generate a Chartreuse scale
Keep the original hue and chroma, then vary OKLCH lightness to produce perceptually ordered steps.
<?php
$oklch = $chartreuse->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 Chartreuse for the web
The same object can emit a compact Hex value, an sRGB CSS function, or its perceptual OKLCH coordinates.
<?php
$hex = $chartreuse->toHex();
$rgb = $chartreuse->toCss('srgb');
$oklch = $chartreuse->to('oklch')->toCss();- hex
#a3e635- rgb
rgb(163 230 53)- oklch
oklch(0.849315 0.20734 128.85)