... *ab) Δ(Y, x, y) Δ(X, Y, Z) or Δ(Rs, Gs, Bs) Color space displayed (L*, a*, b*) (L*, C*ab, hab) (Y, x, y) (X, Y, Z ... , H*ab),Δ(Y, x, y), Δ(X, Y, Z) or Δ(Rs, Gs, Bs) Color space(L*, a*, b*), (L*, C*ab, hab), (Y, x, y), (X, Y, Z ... ) or (Rs, Gs, Bs).Target color memory:8 channel ; set by measurement ...