Pacific Blue (#1CA9C9)

/* Background */
.element {
    background-color: #1CA9C9;
}

/* Text */
.element {
    color: #1CA9C9;
}

/* Border */
.element {
    border: 1px solid #1CA9C9;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #1CA9C9,
        #F7AC9B
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #1CA9C9,
        #F7AC9B
    );
}

// SCSS variable
$pacific-blue: #1CA9C9;

// With RGB channels (useful for rgba() usage)
$pacific-blue-r: 28;
$pacific-blue-g: 169;
$pacific-blue-b: 201;

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