vim-airline/autoload/airline/themes/default.vim

let s:N1 = [ '#00005f' , '#dfff00' , 17  , 190 ]
let s:N2 = [ '#ffffff' , '#444444' , 255 , 238 ]
let s:N3 = [ '#9cffd3' , '#202020' , 85  , 234 ]
let g:airline#themes#default#normal = {
      \ 'mode':           [ s:N1[0]   , s:N1[1]   , s:N1[2] , s:N1[3] , 'bold' ] ,
      \ 'mode_separator': [ s:N1[1]   , s:N2[1]   , s:N1[3] , s:N2[3] , 'bold' ] ,
      \ 'info':           [ s:N2[0]   , s:N2[1]   , s:N2[2] , s:N2[3] , ''     ] ,
      \ 'info_separator': [ s:N2[1]   , s:N3[1]   , s:N2[3] , s:N3[3] , 'bold' ] ,
      \ 'statusline':     [ s:N3[0]   , s:N3[1]   , s:N3[2] , s:N3[3] , ''     ] ,
      \ 'file':           [ '#ff0000' , '#1c1c1c' , 160     , 233     , ''     ] ,
      \ 'inactive':       [ '#4e4e4e' , '#1c1c1c' , 239     , 234     , ''     ] ,
      \ }
let g:airline#themes#default#normal_modified = copy(g:airline#themes#default#normal)
let g:airline#themes#default#normal_modified.info_separator = [ '#444444' , '#5f005f' , s:N2[3] , 53 , '' ]
let g:airline#themes#default#normal_modified.statusline     = [ '#ffffff' , '#5f005f' , 255 , 53 , '' ]

let s:I1 = [ '#00005f' , '#00dfff' , 17  , 45  ]
let s:I2 = [ '#ffffff' , '#005fff' , 255 , 27  ]
let s:I3 = [ '#ffffff' , '#000080' , 15  , 17  ]
let g:airline#themes#default#insert = {
      \ 'mode':           [ s:I1[0]   , s:I1[1]   , s:I1[2] , s:I1[3] , 'bold' ] ,
      \ 'mode_separator': [ s:I1[1]   , s:I2[1]   , s:I1[3] , s:I2[3] , 'bold' ] ,
      \ 'info':           [ s:I2[0]   , s:I2[1]   , s:I2[2] , s:I2[3] , ''     ] ,
      \ 'info_separator': [ s:I2[1]   , s:I3[1]   , s:I2[3] , s:I3[3] , 'bold' ] ,
      \ 'statusline':     [ s:I3[0]   , s:I3[1]   , s:I3[2] , s:I3[3] , ''     ] ,
      \ }
let g:airline#themes#default#insert_modified = copy(g:airline#themes#default#insert)
let g:airline#themes#default#insert_modified.info_separator = [ '#005fff' , '#5f005f' , 27  , 53 , '' ]
let g:airline#themes#default#insert_modified.statusline     = [ '#ffffff' , '#5f005f' , 255 , 53 , '' ]

let s:V1 = [ '#000000' , '#ffaf00' , 232 , 214 ]
let s:V2 = [ '#000000' , '#ff5f00' , 232 , 202 ]
let s:V3 = [ '#ffffff' , '#5f0000' , 15  , 52  ]
let g:airline#themes#default#visual = {
      \ 'mode':           [ s:V1[0]   , s:V1[1]   , s:V1[2] , s:V1[3] , 'bold' ] ,
      \ 'mode_separator': [ s:V1[1]   , s:V2[1]   , s:V1[3] , s:V2[3] , 'bold' ] ,
      \ 'info':           [ s:V2[0]   , s:V2[1]   , s:V2[2] , s:V2[3] , ''     ] ,
      \ 'info_separator': [ s:V2[1]   , s:V3[1]   , s:V2[3] , s:V3[3] , 'bold' ] ,
      \ 'statusline':     [ s:V3[0]   , s:V3[1]   , s:V3[2] , s:V3[3] , ''     ] ,
      \ }
let g:airline#themes#default#visual_modified = copy(g:airline#themes#default#visual)
let g:airline#themes#default#visual_modified.info_separator = [ '#ff5f00' , '#5f005f' , 202 , 53 , '' ]
let g:airline#themes#default#visual_modified.statusline     = [ '#ffffff' , '#5f005f' , 255 , 53 , '' ]