Monochrome

minimalminimaldarksubtle

Colors

#1a1a2e
rgb(26, 26, 46)
#16213e
rgb(22, 33, 62)
#0f3460
rgb(15, 52, 96)

CSS

background: linear-gradient(180deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);

More minimal Gradients