diff --git a/color-convert/composer.json b/color-convert/composer.json
new file mode 100644
index 0000000..1015d08
--- /dev/null
+++ b/color-convert/composer.json
@@ -0,0 +1,5 @@
+{
+    "require": {
+        "spatie/color": "^1.5"
+    }
+}
diff --git a/color-convert/composer.lock b/color-convert/composer.lock
new file mode 100644
index 0000000..18a9588
--- /dev/null
+++ b/color-convert/composer.lock
@@ -0,0 +1,78 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "603b92d7e2cc25b708dbb66ae8ecabd8",
+    "packages": [
+        {
+            "name": "spatie/color",
+            "version": "1.5.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/spatie/color.git",
+                "reference": "49739265900cabce4640cd26c3266fd8d2cca390"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/spatie/color/zipball/49739265900cabce4640cd26c3266fd8d2cca390",
+                "reference": "49739265900cabce4640cd26c3266fd8d2cca390",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.3|^8.0"
+            },
+            "require-dev": {
+                "pestphp/pest": "^1.22",
+                "phpunit/phpunit": "^6.5||^9.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Spatie\\Color\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Sebastian De Deyne",
+                    "email": "sebastian@spatie.be",
+                    "homepage": "https://spatie.be",
+                    "role": "Developer"
+                }
+            ],
+            "description": "A little library to handle color conversions",
+            "homepage": "https://github.com/spatie/color",
+            "keywords": [
+                "color",
+                "conversion",
+                "rgb",
+                "spatie"
+            ],
+            "support": {
+                "issues": "https://github.com/spatie/color/issues",
+                "source": "https://github.com/spatie/color/tree/1.5.3"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/spatie",
+                    "type": "github"
+                }
+            ],
+            "time": "2022-12-18T12:58:32+00:00"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": [],
+    "platform-dev": [],
+    "plugin-api-version": "2.3.0"
+}
diff --git a/color-convert/replacer b/color-convert/replacer
new file mode 100755
index 0000000..0bd21e5
--- /dev/null
+++ b/color-convert/replacer
@@ -0,0 +1,79 @@
+#!/usr/bin/php8.2
+<?php
+
+use Spatie\Color\Hex;
+
+require __DIR__.'/vendor/autoload.php';
+
+$input = $argv[1] ?? null;
+$name = $argv[2] ?? null;
+$nextPrimaryColor = $argv[3] ?? null;
+
+if (empty($input) || !file_exists($input)) {
+    exit(1);
+}
+
+if (empty($name)) {
+    exit(1);
+}
+
+if (empty($nextPrimaryColor)) {
+    exit(1);
+}
+
+$prefixes = [
+    'color-primary',
+    'color-primary-dark',
+    'color-primary-light',
+    'color-primary-alpha',
+];
+
+$properties = [];
+
+foreach ($prefixes as $prefix) {
+    $properties[] = sprintf('--%s', $prefix);
+
+    for ($u = 1; $u < 100; ++$u) {
+        $properties[] = sprintf('--%s-%d', $prefix, $u);
+    }
+}
+
+$content = file_get_contents($input);
+
+$currentPrimaryColor = '#fb923c';
+
+$currentPrimaryColorH = (int) preg_replace('/hsl\(([0-9+]+),.+$/', '$1', Hex::fromString($currentPrimaryColor)->toHsl());
+$nextPrimaryColorH = (int) preg_replace('/hsl\(([0-9]+),.+$/', '$1', Hex::fromString($nextPrimaryColor)->toHsl());
+
+$hDiff = $nextPrimaryColorH - $currentPrimaryColorH;
+
+foreach ($properties as $property) {
+    preg_match_all(
+        sprintf(
+            '/%s: *((?<color>#[A-F0-9]{6})(?<alpha>[A-F0-9]{2}){0,1});/is',
+            $property,
+        ),
+        $content,
+        $matches,
+        PREG_SET_ORDER
+    );
+
+    foreach ($matches as $match) {
+        $match['alpha'] ??= 'ff';
+
+        $color = Hex::fromString($match['color']);
+        $hsl = $color->toHsla(hexdec($match['alpha']) * 1 / 255);
+
+        $hsl = preg_replace_callback('/\(([0-9]+),/', function ($m) use ($hDiff) {
+            return sprintf('(%d,', $m[1] + $hDiff);
+        }, $hsl);
+
+        $content = str_replace(
+            $match[0],
+            sprintf('%s: %s;', $property, $hsl),
+            $content
+        );
+    }
+}
+
+file_put_contents(str_replace('.css', '-'.$name.'.css', $input), $content);