pal_unikn_pair provides an additional uni.kn color palette  
that collects 16 paired colors of 8 color palettes  
as a data frame containing 16 colors (in 8 pairs).
pal_unikn_pairAn object of class data.frame with 1 rows and 16 columns.
See https://www.uni-konstanz.de/en/university/news-and-media/create-online-and-print-media/corporate-design/ for details.
pal_unikn_light for a lighter uni.kn color palette; 
pal_unikn_dark for a darker uni.kn color palette; 
pal_unikn for the default uni.kn color palette; 
seecol for viewing and comparing color palettes;
usecol for using color palettes.
Other color palettes: 
pal_bordeaux,
pal_grau,
pal_karpfenblau,
pal_peach,
pal_petrol,
pal_pinky,
pal_seeblau,
pal_seegruen,
pal_signal,
pal_unikn,
pal_unikn_dark,
pal_unikn_light,
pal_unikn_ppt,
pal_unikn_pref,
pal_unikn_web
pal_unikn_pair
#>   karpfenblau4 karpfenblau2 seeblau5 seeblau3 petrol4 petrol2 seegruen4
#> 1      #3E5496      #8290BB  #008ECE  #59C7EB #077187 #6AAAB7   #0A9086
#>   seegruen2 bordeaux4 bordeaux2  pinky4  pinky2  peach4  peach2   grau2   grau1
#> 1   #54BFB7   #8E2043   #BC7A8F #E0607E #ECA0B2 #FEA090 #FECFC7 #B8BCC1 #E1E2E5
dim(pal_unikn_pair)  # 1 16
#> [1]  1 16
pal_unikn_pair[1]    # color "karpfenblau4" by position
#>   karpfenblau4
#> 1      #3E5496
pal_unikn_pair[[1]]  # color value by position: #3E5496"
#> [1] "#3E5496"
pal_unikn_pair["karpfenblau4"]  # color value by name
#>   karpfenblau4
#> 1      #3E5496
# Viewing/using color palette:
seecol(pal_unikn_pair)
 demopal(pal_unikn_pair, type = "polygon", main = "A pair-wise color palette")
demopal(pal_unikn_pair, type = "polygon", main = "A pair-wise color palette")
