5-step gradient: Strong red (#990000) to Luminous vivid blue (#0000ff).

RGB Gradient: Strong red to Luminous vivid blue

Spot colors

 
 
 
 
 
#990000 #72003f #4c007f #2600bf #0000ff
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #990000, #0000ff);
Output

HSV Clockwise Gradient: Strong red to Luminous vivid blue

Spot colors

 
 
 
 
 
#990000 #b2b200 #00cc00 #00e5e5 #0000ff
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #990000, #b2b200, #00cc00, #00e5e5, #0000ff);
Output

HSV Counterclockwise Gradient: Strong red to Luminous vivid blue

Spot colors

 
 
 
 
 
#990000 #b20059 #cc00cc #7200e5 #0000ff
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #990000, #b20059, #cc00cc, #7200e5, #0000ff);
Output