DarkSlateGray
A deep, cool cyan -- the dependable foundation of trustworthy interfaces.
Create DarkSlateGray 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;
$darkslategray = Color::parse('#2F4F4F');ColorInterface
$darkslategray
#2f4f4f · oklch(0.4030 0.0377 195.8)
Build a DarkSlateGray harmony
tetradic() keeps DarkSlateGray and adds three partners at equal quarter-turns around the OKLCH hue wheel.
<?php
$harmony = $darkslategray->tetradic();
foreach ($harmony as $color) {
echo $color->toHex().PHP_EOL;
}- 0
#2f4f4f - 1
#46465c - 2
#5b4042 - 3
#4b4a32
Generate a DarkSlateGray scale
Keep the original hue and chroma, then vary OKLCH lightness to produce perceptually ordered steps.
<?php
$oklch = $darkslategray->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 DarkSlateGray for the web
The same object can emit a compact Hex value, an sRGB CSS function, or its perceptual OKLCH coordinates.
<?php
$hex = $darkslategray->toHex();
$rgb = $darkslategray->toCss('srgb');
$oklch = $darkslategray->to('oklch')->toCss();- hex
#2f4f4f- rgb
rgb(47 79 79)- oklch
oklch(0.402963 0.0377237 195.758)