softly blended blue background with gentle color gradient transitioning from pale sky to deep navy blue, creating a calming and

background abstract soft blue gradient colorful dreamy ethereal cloudy pastel watercolor haze misty vibrant icy calming soothing relaxing palette ombre faded muted gentle whimsical fantasy celestial cosmic nebula atmospheric hues shades tones texture blur swirl pattern abstracted fuzzy indistinct blurrier hazy softfocus gradientblue blurry unfocused diffuse diaphanous iridescent luminescent