diff --git a/css/_single_theme.css.php b/css/_single_theme.css.php
index 4aa58e84fd..3214d1b043 100644
--- a/css/_single_theme.css.php
+++ b/css/_single_theme.css.php
@@ -412,6 +412,24 @@
 	border-style:var(--field-border-style)<?php echo esc_html( $important ); ?>;
 }
 
+.<?php echo esc_html( $style_class ); ?> .frm_blank_field input::placeholder,
+.<?php echo esc_html( $style_class ); ?> .frm_blank_field textarea::placeholder,
+.<?php echo esc_html( $style_class ); ?> .frm_blank_field input.frm_default,
+.<?php echo esc_html( $style_class ); ?> .frm_blank_field textarea.frm_default,
+.<?php echo esc_html( $style_class ); ?> .frm_blank_field .placeholder,
+.<?php echo esc_html( $style_class ); ?> .frm_form_field input:invalid::placeholder,
+.<?php echo esc_html( $style_class ); ?> .frm_form_field textarea:invalid::placeholder {
+	color:var(--text-color-error)<?php echo esc_html( $important ); ?>;
+}
+
+.<?php echo esc_html( $style_class ); ?> .frm_blank_field .frm_combo_inputs_container > .frm_form_field:not(.frm_blank_field) input::placeholder,
+.<?php echo esc_html( $style_class ); ?> .frm_blank_field .frm_combo_inputs_container > .frm_form_field:not(.frm_blank_field) textarea::placeholder,
+.<?php echo esc_html( $style_class ); ?> .frm_blank_field .frm_combo_inputs_container > .frm_form_field:not(.frm_blank_field) input.frm_default,
+.<?php echo esc_html( $style_class ); ?> .frm_blank_field .frm_combo_inputs_container > .frm_form_field:not(.frm_blank_field) textarea.frm_default,
+.<?php echo esc_html( $style_class ); ?> .frm_blank_field .frm_combo_inputs_container > .frm_form_field:not(.frm_blank_field) .placeholder {
+	color:var(--text-color-disabled)<?php echo esc_html( $important ); ?>;
+}
+
 <?php
 // Only include this style when the signatures add-on is active
 if ( class_exists( 'FrmSigField' ) ) :
diff --git a/tests/phpunit/styles/test_FrmStyle.php b/tests/phpunit/styles/test_FrmStyle.php
index a462a5401c..4a4322a13e 100644
--- a/tests/phpunit/styles/test_FrmStyle.php
+++ b/tests/phpunit/styles/test_FrmStyle.php
@@ -301,4 +301,21 @@ public function test_save_settings_stores_padded_timestamp_version() {
 		$this->assertGreaterThanOrEqual( (int) $before, (int) $version );
 		$this->assertLessThanOrEqual( (int) $after, (int) $version );
 	}
+
+	/**
+	 * Placeholders in a field with an error must use the Error > Field Text color, not the Read Only text color.
+	 *
+	 * @see https://github.com/Strategy11/formidable-pro/issues/6929
+	 */
+	public function test_generated_css_uses_error_color_for_placeholders_in_fields_with_errors() {
+		$css = $this->run_private_method(
+			array( new FrmStyle(), 'get_css_content' ),
+			array( FrmAppHelper::plugin_path() . '/css/custom_theme.css.php' )
+		);
+
+		$this->assertMatchesRegularExpression( '/\.frm_blank_field input::placeholder,[^{]*\{color:var\(--text-color-error\)/', $css );
+		$this->assertMatchesRegularExpression( '/\.frm_form_field input:invalid::placeholder,[^{]*\{color:var\(--text-color-error\)/', $css );
+		// Sub fields of a combo field without an error keep the normal placeholder color.
+		$this->assertMatchesRegularExpression( '/\.frm_form_field:not\(\.frm_blank_field\) input::placeholder,[^{]*\{color:var\(--text-color-disabled\)/', $css );
+	}
 }