5-step gradient: Luminous vivid red (#ff0000) to Very light yellow (#ffff99).

RGB Gradient: Luminous vivid red to Very light yellow

Spot colors

 
 
 
 
 
#ff0000 #ff3f26 #ff7f4c #ffbf72 #ffff99
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #ff0000, #ffff99);
Output

HSV Clockwise Gradient: Luminous vivid red to Very light yellow

Spot colors

 
 
 
 
 
#ff0000 #ff5c26 #ffa54c #ffdb72 #fffe99
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #ff0000, #ff5c26, #ffa54c, #ffdb72, #fffe99);
Output

HSV Counterclockwise Gradient: Luminous vivid red to Very light yellow

Spot colors

 
 
 
 
 
#ff0000 #c826ff #4ca5ff #72ff95 #ffff99
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #ff0000, #c826ff, #4ca5ff, #72ff95, #ffff99);
Output