MediumBlue
A deep, cool indigo -- the dependable foundation of trustworthy interfaces.
Create MediumBlue 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;
$mediumblue = Color::parse('#0000CD');ColorInterface
$mediumblue
#0000cd · oklch(0.3835 0.2657 264.1)
Build a MediumBlue harmony
tetradic() keeps MediumBlue and adds three partners at equal quarter-turns around the OKLCH hue wheel.
<?php
$harmony = $mediumblue->tetradic();
foreach ($harmony as $color) {
echo $color->toHex().PHP_EOL;
}- 0
#0000cd - 1
#99004c - 2
#801700 - 3
#006638
Generate a MediumBlue scale
Keep the original hue and chroma, then vary OKLCH lightness to produce perceptually ordered steps.
<?php
$oklch = $mediumblue->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 MediumBlue for the web
The same object can emit a compact Hex value, an sRGB CSS function, or its perceptual OKLCH coordinates.
<?php
$hex = $mediumblue->toHex();
$rgb = $mediumblue->toCss('srgb');
$oklch = $mediumblue->to('oklch')->toCss();- hex
#0000cd- rgb
rgb(0 0 205)- oklch
oklch(0.383453 0.265707 264.052)