5-step gradient: Luminous vivid red (#ff0000) to Strong green (#009900).

RGB Gradient: Luminous vivid red to Strong green

Spot colors

 
 
 
 
 
#ff0000 #bf2600 #7f4c00 #3f7200 #009900
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #ff0000, #009900);
Output

HSV Clockwise Gradient: Luminous vivid red to Strong green

Spot colors

 
 
 
 
 
#ff0000 #e57200 #cbcc00 #59b200 #009900
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #ff0000, #e57200, #cbcc00, #59b200, #009900);
Output

HSV Counterclockwise Gradient: Luminous vivid red to Strong green

Spot colors

 
 
 
 
 
#ff0000 #e500e5 #0000cc #00b2b2 #009900
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #ff0000, #e500e5, #0000cc, #00b2b2, #009900);
Output