Bright Red100%
75%
50%
25%
Hex#f15060
Pantone032 U
Sunflower100%
75%
50%
25%
Hex#ffb511
Pantone116 U
Purple100%
75%
50%
25%
Hex#765ba7
Pantone2685 U
Teal100%
75%
50%
25%
Hex#00838a
Pantone321 U
Blue100%
75%
50%
25%
Hex#0078bf
Pantone3005 U
Black100%
75%
50%
25%
Hex#000
PantoneBlack U
Coming in 2023
Teal might be replaced with green:
Green100%
75%
50%
25%
Hex#00a95c
Pantone354 U
Future color(s)
Fluorescent Pink100%
75%
50%
25%
Hex#ff48b0
Pantone806 U
Risograph inks are rice-based and do not conform exactly to any color standards. These are approximates for reference only. Additionally, Riso inks are also slightly transparent and allow for variations in overprint and based on the color of paper they are printed on.
Info from stencil.wiki (CC-BY-NC)