HealthBarColor
let's you change the green health bar color to whatever color you like. You can individually change the color of the player, target, focus, boss and pet health bar.
Each of these frames can be set to either the players class color or the targets/focus's class color alternatively you can choose a custom color.
You can now also use class icons instead of portraits.
Please have a look at the screenshots for a better understanding
In the classic version you can only set one color for all health bars for now.
/hbc
Raid Frames & Raid-Style Party Frames
if you want to customize the Raid Frames & Raid-Style Party Frames textures, colors and more check out Advanced Raid Frame Settings
If you want class colored tooltip health bars, here you go