do color 00ff00 looks like a very bright green color

Yes, that is correct. The hexadecimal color code `00ff00` represents a bright green color. - The first two characters, `00`, represent the red component. - The third and fourth characters, `ff`, represent the green component at its highest level (255 on a scale of 0 to 255). - The fifth and sixth characters, `00`, represent the blue component. Since `00ff00` has the maximum intensity of green and no red or blue, it indeed appears as a very bright shade of green, often referred to as "lime green."