I'll update the tab designs to have the active tab with a colored background and white text. Here's the implementation:

I've updated all three tab designs to use a colored background with white text for the active tab. The changes include:

1. ImprovedTabs: The active tab now has a purple background with white text, creating a strong visual indicator.
2. TabNavigation: The active tab now has a purple background with white text and rounded top corners, giving it a tab-like appearance.
3. PremiumTabs: The active tab now has a purple background with white text, standing out against the light gray container.

These changes provide a more prominent visual indication of the active tab, making it immediately clear to users which tab is currently selected. The white text ensures good contrast against the colored background for better readability.

I'll update all the tab designs to use the color #725AEC for the active tab background:

I've updated all three tab designs to use the color #725AEC (a vibrant indigo/purple) for the active tab background with white text. This creates a strong visual indicator for the selected tab.

Additionally, I've added this color to the Tailwind configuration file as the primary color, which allows you to use it consistently throughout your application with the bg-primary class if needed.

Here's what I changed:

1. ImprovedTabs: The active tab now has a #725AEC background with white text.
2. TabNavigation: The active tab now has a #725AEC background with white text and rounded top corners.
3. PremiumTabs: The active tab now has a #725AEC background with white text.
4. Tailwind Config: Added #725AEC as the primary color in your theme configuration.

The color #725AEC is a rich indigo that provides excellent contrast with white text, making the active tab stand out clearly while maintaining good readability.