Yellow variation: the one rule to keep first
Within a batch, yellow commonly uses ΔEab 5, one step looser than the 4 for cyan, magenta and black. Do not lock yellow to 4 or loosen the others to 5. The contract version decides.
Within a batch, yellow commonly uses ΔEab 5, one step looser than the 4 used for cyan, magenta and black. Do not lock yellow to 4, and do not loosen cyan, magenta and black to 5. The contract version decides.
What this rule covers
Do not skip yellow because it looks less obvious. When yellow is over, skin tones and brand colours both shift. Hue of yellow is read on ΔH. Depth variation of yellow is read on ΔE. You need both. One does not stand in for the other.
Side by side
| Item | Do this | Do not |
|---|---|---|
| Yellow variation | Within a batch, yellow commonly uses ΔEab 5, one step looser than 4 for cyan, magenta and black. Do not lock yellow to 4 or loosen the other three to 5. Follow the contract version. | Write only a feeling |
| Common miss | Do not skip yellow because it looks faint. Over yellow moves skin tones and brand colours. | Keep the wrong limit |
| Leave on the sheet | Yellow has its own line. Do not write only that cyan, magenta and black passed. Write wet or dry. | Leave only the word pass |
Do these three first
- Put yellow on its own line.
- Write wet or dry.
- Do not judge yellow with the 4 used for cyan, magenta and black.
