Neon Fuchsia (#FE59C2)

/* Background */
.element {
    background-color: #FE59C2;
}

/* Text */
.element {
    color: #FE59C2;
}

/* Border */
.element {
    border: 1px solid #FE59C2;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #FE59C2,
        #59FE95
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #FE59C2,
        #59FE95
    );
}

// SCSS variable
$neon-fuchsia: #FE59C2;

// With RGB channels (useful for rgba() usage)
$neon-fuchsia-r: 254;
$neon-fuchsia-g: 89;
$neon-fuchsia-b: 194;

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