Ruby
A mid, warm red with the energy of a warm sky.
Create Ruby 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;
$ruby = Color::parse('#E11D48');ColorInterface
$ruby
#e11d48 · oklch(0.5858 0.2220 17.6)
Build a Ruby harmony
tetradic() keeps Ruby and adds three partners at equal quarter-turns around the OKLCH hue wheel.
<?php
$harmony = $ruby->tetradic();
foreach ($harmony as $color) {
echo $color->toHex().PHP_EOL;
}- 0
#e11d48 - 1
#8d8000 - 2
#009eaa - 3
#7b59f5
Generate a Ruby scale
Keep the original hue and chroma, then vary OKLCH lightness to produce perceptually ordered steps.
<?php
$oklch = $ruby->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 Ruby for the web
The same object can emit a compact Hex value, an sRGB CSS function, or its perceptual OKLCH coordinates.
<?php
$hex = $ruby->toHex();
$rgb = $ruby->toCss('srgb');
$oklch = $ruby->to('oklch')->toCss();- hex
#e11d48- rgb
rgb(225 29 72)- oklch
oklch(0.585838 0.222042 17.5846)