RGB ni yo yongewamo (additive) ikomoka ku rumuri, CMYK ni yo igabanywa (subtractive) ikomoka ku ink. Guhindura hagati y'izo ni intambwe buri design yerekana kuri ecran igomba gukora mbere yo gucapwa.
Uko guhindura RGB ujya CMYK bikora
- Soma R, G na B nk'agaciro ka sRGB hagati ya 0 na 255.
- Shakisha ibara mu mwirondoro wa Coated FOGRA39, umwirondoro usanzwe wa ICC w'impapuro zisize mu Burayi.
- Koresha uburyo bugereranya amabara bufite guhindura ingingo y'umukara, kugira ngo umweru ugume uba umweru w'impapuro, n'umukara ube wino y'umukara cyane icapiro rishobora gucapa.
- Hindura ibyo byose kuba percentages hagati ya 0 na 100.
Urugero rwakozwe
Ibi bikoresha umwirondoro usanzwe wa Coated FOGRA39. Inganda z'icapiro zikoresha imirondoro yazo ya ICC n'imipaka ya wino, ni yo mpamvu indi mirondoro ya CMYK (urugero iyo mu ruganda rw'icapiro rwawe) itanga imibare itandukanye. Fata igisubizo nk'icyerekezo cyizewe, si nk'igabanyije ryiteguye gucapwa.
RGB na CMYK bisobanuwe
Icyo RGB ari cyo
RGB isobanura ibara nka channel eshatu z'urumuri — umutuku, icyatsi na bleu — buri kimwe kuva 0 kugeza 255. Ihuza n'ukuntu ecran zikora: byose kuri 255 bitanga umweru, byose kuri 0 bitanga umukara. RGB ni cyo cyiza igihe ugomba gukora imibare ku ibara, kandi rgba() yongeza transparency hejuru.
- Imiterere:
- rgb(R, G, B)
- Urutonde:
- 0–255 kuri buri muyoboro
- Byiza kuri:
- code, canvas, transparency na rgba()
Icyo CMYK ari cyo
CMYK ni modelu y'inkuru enye ikoreshwa mu icapiro: cyan, magenta, yellow na key (umukara), buri rimwe rigaragara nka percentage kuva 0 kugeza 100. Ikoresha inyandiko ikuraho urumuri aho kururekura, bityo CMYK ifata amabara make kurusha ecran — ari yo mpamvu amabara asobanutse ku ecran akenshi asa n'atarimo ubwo acapwe.
- Imiterere:
- cmyk(C%, M%, Y%, K%)
- Urutonde:
- 0–100% kuri buri ink
- Byiza kuri:
- icapiro, ipaki, ibikorwa biteguye gucapwa
RGB to CMYK reference table
Amabara akunze gukoreshwa muri CSS, yahinduwe kuva RGB ujya CMYK.
| Ibara | RGB | CMYK |
|---|---|---|
| black | rgb(0, 0, 0) | cmyk(89%, 78%, 62%, 97%) |
| white | rgb(255, 255, 255) | cmyk(0%, 0%, 0%, 0%) |
| red | rgb(255, 0, 0) | cmyk(0%, 95%, 92%, 0%) |
| lime | rgb(0, 255, 0) | cmyk(64%, 0%, 100%, 0%) |
| blue | rgb(0, 0, 255) | cmyk(93%, 75%, 0%, 0%) |
| yellow | rgb(255, 255, 0) | cmyk(9%, 0%, 96%, 0%) |
| orange | rgb(255, 165, 0) | cmyk(0%, 43%, 94%, 0%) |
| teal | rgb(0, 128, 128) | cmyk(83%, 27%, 48%, 12%) |
| purple | rgb(128, 0, 128) | cmyk(63%, 100%, 4%, 1%) |
| gray | rgb(128, 128, 128) | cmyk(48%, 39%, 39%, 21%) |