diff --git a/src/Elements/Attributes/ClassNames.php b/src/Elements/Attributes/ClassNames.php
index 9c33c10..672fa30 100644
--- a/src/Elements/Attributes/ClassNames.php
+++ b/src/Elements/Attributes/ClassNames.php
@@ -233,7 +233,15 @@ protected function variantClassNames(): array
 		// Start with default always
 		$variants = new BaseCollection('default');
 		
-		// Merge in other variants if they're set
+		// Apply implicit variants
+		$implicit = ['disabled', 'readonly', 'required'];
+		foreach ($implicit as $attribute) {
+			if ($this->element->attributes->get($attribute, false)) {
+				$variants->push($attribute);
+			}
+		}
+		
+		// Merge in other variants if they're set (last, so that they take precedence)
 		if ($variant = $this->element->getViewData('variant')) {
 			$variants = $variants->merge((array) $variant);
 		}
diff --git a/tests/Unit/VariantTest.php b/tests/Unit/VariantTest.php
index fad5da9..1b6504f 100644
--- a/tests/Unit/VariantTest.php
+++ b/tests/Unit/VariantTest.php
@@ -153,4 +153,76 @@ public function test_variants_can_be_combined_and_partially_merged(): void
 			'input-not-nested-variant',
 		]);
 	}
+	
+	public function test_disabled_variant_is_applied_dynamically(): void
+	{
+		$this->app['config']->set('aire.variant_classes', [
+			'input' => [
+				'default' => [
+					'base' => 'input-default',
+				],
+				'disabled' => [
+					'base' => 'input-disabled',
+					'color' => 'input-disabled-color',
+				],
+			],
+		]);
+		
+		$disabled = $this->aire()->input()->disabled();
+		$enabled = $this->aire()->input()->disabled()->disabled(false); // set then unset
+		
+		$this->assertSelectorClassNames($disabled, 'input', ['input', 'input-disabled', 'input-disabled-color']);
+		$this->assertSelectorMissingClassNames($disabled, 'input', ['input-default']);
+		
+		$this->assertSelectorClassNames($enabled, 'input', ['input', 'input-default']);
+		$this->assertSelectorMissingClassNames($enabled, 'input', ['input-disabled', 'input-disabled-color']);
+	}
+	
+	public function test_readonly_variant_is_applied_dynamically(): void
+	{
+		$this->app['config']->set('aire.variant_classes', [
+			'input' => [
+				'default' => [
+					'base' => 'input-default',
+				],
+				'readonly' => [
+					'base' => 'input-readonly',
+					'color' => 'input-readonly-color',
+				],
+			],
+		]);
+		
+		$read_only = $this->aire()->input()->readOnly();
+		$read_write = $this->aire()->input()->readOnly()->readOnly(false); // set then unset
+		
+		$this->assertSelectorClassNames($read_only, 'input', ['input', 'input-readonly', 'input-readonly-color']);
+		$this->assertSelectorMissingClassNames($read_only, 'input', ['input-default']);
+		
+		$this->assertSelectorClassNames($read_write, 'input', ['input', 'input-default']);
+		$this->assertSelectorMissingClassNames($read_write, 'input', ['input-readonly', 'input-readonly-color']);
+	}
+	
+	public function test_required_variant_is_applied_dynamically(): void
+	{
+		$this->app['config']->set('aire.variant_classes', [
+			'input' => [
+				'default' => [
+					'base' => 'input-default',
+				],
+				'required' => [
+					'base' => 'input-required',
+					'color' => 'input-required-color',
+				],
+			],
+		]);
+		
+		$required = $this->aire()->input()->required();
+		$optional = $this->aire()->input()->required()->required(false); // set then unset
+		
+		$this->assertSelectorClassNames($required, 'input', ['input', 'input-required', 'input-required-color']);
+		$this->assertSelectorMissingClassNames($required, 'input', ['input-default']);
+		
+		$this->assertSelectorClassNames($optional, 'input', ['input', 'input-default']);
+		$this->assertSelectorMissingClassNames($optional, 'input', ['input-required', 'input-required-color']);
+	}
 }