Green (Munsell) (#00A877)

/* Background */
.element {
    background-color: #00A877;
}

/* Text */
.element {
    color: #00A877;
}

/* Border */
.element {
    border: 1px solid #00A877;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #00A877,
        #FF5184
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #00A877,
        #FF5184
    );
}

// SCSS variable
$green-(munsell): #00A877;

// With RGB channels (useful for rgba() usage)
$green-(munsell)-r: 0;
$green-(munsell)-g: 168;
$green-(munsell)-b: 119;

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