var progressval = 55;
var elm = document.getElementsByClassName('progressab')[0];
elm.style.width = progressval+"%";
elm.innerText = "You're "+progressval+"% There!";
if(progressval>90 && progressval<=100 ){ elm.style.backgroundColor = 'blue';
}else if(progressval>50 && progressval<90 ){ elm.style.backgroundColor = 'green';
}else if(progressval<=50){ elm.style.backgroundColor = 'red';
}
.progressa {
border-radius: 50px !important;
height: 35px;
line-height: 36px;
font-size: 14px;
overflow: hidden;
height: 35px;
margin-bottom: 20px;
background-color: rgba(0,0,0,0.5);
border-radius: 4px;
-webkit-box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
line-height: 36px;
height: 35px;
font-size: 14px;
border: 3px solid transparent;
}
.progressab {
background-image: -webkit-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);
background-image: -o-linear-gradient(45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);
-webkit-background-size: 40px 40px;
background-size: 40px 40px;
-webkit-transition: width .25s ease,height .25s ease,font-size .25s ease;
-moz-transition: width .25s ease,height .25s ease,font-size .25s ease;
-ms-transition: width .25s ease,height .25s ease,font-size .25s ease;
-o-transition: width .25s ease,height .25s ease,font-size .25s ease;
transition: width .25s ease,height .25s ease,font-size .25s ease;
width: 0;
color: #fff;
text-align: center;
font-family: 'Open Sans',sans-serif !important;
animation: progress-bar-stripes 2s linear infinite reverse;
}
@keyframes progress-bar-stripes{
0% {
background-position: 40px 0;
}
100% {
background-position: 0 0;
}
}
<div class="progressa">
<div class="progressab" style=" background-color: rgb(178, 222, 75);"></div>
</div>