5-step gradient: Luminous vivid red (#ff0000) to Luminous vivid aquamarine (#00ff99).

RGB Gradient: Luminous vivid red to Luminous vivid aquamarine

Spot colors

 
 
 
 
 
#ff0000 #bf3f26 #7f7f4c #3fbf72 #00ff99
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #ff0000, #00ff99);
Output

HSV Clockwise Gradient: Luminous vivid red to Luminous vivid aquamarine

Spot colors

 
 
 
 
 
#ff0000 #ffa500 #b2ff00 #0cff00 #00ff99
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #ff0000, #ffa500, #b2ff00, #0cff00, #00ff99);
Output

HSV Counterclockwise Gradient: Luminous vivid red to Luminous vivid aquamarine

Spot colors

 
 
 
 
 
#ff0000 #ff00d8 #4c00ff #008cff #00ff99
Export palette (gpl/png/ase)

Linear gradient

CSS
background-image: linear-gradient(135deg, #ff0000, #ff00d8, #4c00ff, #008cff, #00ff99);
Output