5-step gradient: Luminous vivid red (#ff0000) to Very light cyan (#99ffff).

RGB Gradient: Luminous vivid red to Very light cyan

Spot colors

 
 
 
 
 
#ff0000 #e53f3f #cc7f7f #b2bfbf #99ffff
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #ff0000, #99ffff);
Output

HSV Clockwise Gradient: Luminous vivid red to Very light cyan

Spot colors

 
 
 
 
 
#ff0000 #ffc826 #a5ff4c #72ff95 #99ffff
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #ff0000, #ffc826, #a5ff4c, #72ff95, #99ffff);
Output

HSV Counterclockwise Gradient: Luminous vivid red to Very light cyan

Spot colors

 
 
 
 
 
#ff0000 #ff26c8 #a54cff #7295ff #99ffff
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #ff0000, #ff26c8, #a54cff, #7295ff, #99ffff);
Output