Plum
A mid, warm violet with the energy of a warm sky.
Create Plum 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;
$plum = Color::parse('#A855F7');ColorInterface
$plum
#a855f7 · oklch(0.6268 0.2325 303.9)
Build a Plum harmony
tetradic() keeps Plum and adds three partners at equal quarter-turns around the OKLCH hue wheel.
<?php
$harmony = $plum->tetradic();
foreach ($harmony as $color) {
echo $color->toHex().PHP_EOL;
}- 0
#a855f7 - 1
#f43300 - 2
#6d9b00 - 3
#00a4dc
Generate a Plum scale
Keep the original hue and chroma, then vary OKLCH lightness to produce perceptually ordered steps.
<?php
$oklch = $plum->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 Plum for the web
The same object can emit a compact Hex value, an sRGB CSS function, or its perceptual OKLCH coordinates.
<?php
$hex = $plum->toHex();
$rgb = $plum->toCss('srgb');
$oklch = $plum->to('oklch')->toCss();- hex
#a855f7- rgb
rgb(168 85 247)- oklch
oklch(0.626846 0.232542 303.9)