Rose Pink (#FF66CC)

/* Background */
.element {
    background-color: #FF66CC;
}

/* Text */
.element {
    color: #FF66CC;
}

/* Border */
.element {
    border: 1px solid #FF66CC;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #FF66CC,
        #66FF99
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #FF66CC,
        #66FF99
    );
}

// SCSS variable
$rose-pink: #FF66CC;

// With RGB channels (useful for rgba() usage)
$rose-pink-r: 255;
$rose-pink-g: 102;
$rose-pink-b: 204;

// Usage
.element {
    background-color: $rose-pink;
    color: rgba($rose-pink-r, $rose-pink-g, $rose-pink-b, 0.8);
}