Python eventplot shows that:

colors

must be a sequence of RGBA tuples (eg arbitrary color

strings, etc, not allowed) or a list of such sequences

I want to show driver gene,sex information and clinic stage in one picture to make it more visual with python matplotlib eventplot.I use RGBA tuples for both picture and legend,but it shows different colors between main picture and legend.

for example：

clinic:

if len(a1) > 0:
clinic_data.append(a1)
clinic_lineoffset.append(0.5)
clinic_corlor.append((0.8,0.8,0.8))

if len(b1) > 0:
clinic_data.append(b1)
clinic_lineoffset.append(0.5)
clinic_corlor.append((0.6,0.6,0.6))

if len(c1) > 0:
clinic_data.append(c1)
clinic_lineoffset.append(0.5)
clinic_corlor.append((0.4,0.4,0.4))

if len(d1) > 0:
clinic_data.append(d1)
clinic_lineoffset.append(0.5)
clinic_corlor.append((0.0,0.0,0.0))

add legend for clinic:

axHistx0.scatter(1.5,0,c=(0.8, 0.8, 0.8),marker='s',linewidths=0,s=100)
axHistx0.text(3,0,'Stage 1',fontsize=10)
axHistx0.scatter(10,0,c=(0.6, 0.6, 0.6),marker='s',linewidths=0,s=100)
axHistx0.text(11.5,0,'Stage 2',fontsize=10)
axHistx0.scatter(18.5,0,c=(0.4, 0.4, 0.4),marker='s',linewidths=0,s=100)
axHistx0.text(20,0,'Stage 3',fontsize=10)
axHistx0.scatter(27,0,c=(0.0, 0.0, 0.0),marker='s',linewidths=0,s=100)
axHistx0.text(28.5,0,'Stage 4',fontsize=10)