Pastel Red (#FF6961)

/* Background */
.element {
    background-color: #FF6961;
}

/* Text */
.element {
    color: #FF6961;
}

/* Border */
.element {
    border: 1px solid #FF6961;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #FF6961,
        #61F7FF
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #FF6961,
        #61F7FF
    );
}

// SCSS variable
$pastel-red: #FF6961;

// With RGB channels (useful for rgba() usage)
$pastel-red-r: 255;
$pastel-red-g: 105;
$pastel-red-b: 97;

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