Vivid Amber (#CC9900)

/* Background */
.element {
    background-color: #CC9900;
}

/* Text */
.element {
    color: #CC9900;
}

/* Border */
.element {
    border: 1px solid #CC9900;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #CC9900,
        #99B3FF
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #CC9900,
        #99B3FF
    );
}

// SCSS variable
$vivid-amber: #CC9900;

// With RGB channels (useful for rgba() usage)
$vivid-amber-r: 204;
$vivid-amber-g: 153;
$vivid-amber-b: 0;

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