Here You can set color in RGB color model and watch at complimentary colors at bottom of the page or just click random color.
Basic color:
#9f1b96; rgb(159,27,150); hsl(303,71%,36%);
black
black
white
white
Complementary colors:
Analogous harmony (H+30):
#9d1b53; rgb(157,27,83); hsl(333,71%,36%);
black
black
white
white
Analogous harmony (H-30):
#641b9d; rgb(100,27,157); hsl(273,71%,36%);
black
black
white
white
Triadic harmony (H+120):
#969d1b; rgb(150,157,27); hsl(63,71%,36%);
black
black
white
white
Triadic harmony (H-120):
#1b959d; rgb(27,149,157); hsl(183,71%,36%);
black
black
white
white
Split complements harmony (H+150):
#559d1b; rgb(85,157,27); hsl(93,71%,36%);
black
black
white
white
Split complements harmony (H-150):
#1b9d63; rgb(27,157,99); hsl(153,71%,36%);
black
black
white
white
Complement harmony (H+180):
#1b9d22; rgb(27,157,34); hsl(123,71%,36%);
black
black
white
white
Monochromatic harmony (S+30):
#b800ac; rgb(184,0,172); hsl(303,100%,36%);
black
black
white
white
Monochromatic harmony (S-30):
#81367d; rgb(129,54,125); hsl(303,41%,36%);
black
black
white
white
Monochromatic harmony (L+10):
#c922be; rgb(201,34,190); hsl(303,71%,46%);
black
black
white
white
Monochromatic harmony (L-10):
#71136b; rgb(113,19,107); hsl(303,71%,26%);
black
black
white
white