index.css

*{
    box-sizing: border-box;
}

html, body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
}

body{
    display: flex;
    flex-direction: column;
    height: 100vh;
}

nav{
    height: 80px;
    display: flex;
}

form{
    display: flex;
    align-items: center;
}

#color-picker{
    border: none;
    margin: 0px 20px;
    height: 40px;
}

select{
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-size: 16px;
    line-height: 24px;
    width: 312px;
    height: 42px;
    background: #FFFFFF;
    border: 1px solid #D1D5DB;
    box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.05);
    border-radius: 6px;
    margin: 0px;
}

button{
    width: 123px;
    height: 42px;
    font-family: 'Inter';
    font-style: normal;
    font-weight: 500;
    font-size: 12px;
    line-height: 16px;
    background: #FFFFFF;
    border: 1px solid #D1D5DB;
    box-shadow: 0px 1px 2px rgba(0, 0, 0, 0.05);
    border-radius: 4px;
    margin: 0px 20px;
}

#color-container{
    height: 100%;
    display: flex;
}

.color{
    width: 20%;
    height: 100%;
    display: flex;
}

.hex{
    width: 100%;
    height: 50px;
    align-self: flex-end;
    justify-content: center;
    display: flex;
    background: white;
}

.hex-text{
    align-self: center;
    font-family: 'Inter';
    font-style: normal;
    font-weight: 500;
    font-size: 12px;
    line-height: 24px;
}