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Sketching basics · Lesson 3 of 5

Value: light and dark

Value is the relative lightness or darkness of a tone. A picture with clear, well-organised values reads well even in black and white. Most colour problems are actually value problems.

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Diagram: value.

Step by step

  1. Make a 9-step value scale: a strip of nine boxes from white paper to your darkest dark, with even jumps between neighbours.
  2. Squint at your subject. Squinting simplifies values and makes it easier to group them.
  3. Group the subject into three main values first — light, middle and dark. Draw a small thumbnail using only these three.
  4. Find the lightest light and the darkest dark and place them early. Everything else is judged between those two.
  5. Compare values side by side rather than judging them in isolation; a grey looks lighter next to black and darker next to white (simultaneous contrast).
  6. Check your work in greyscale: photograph it and turn the saturation down, or use the value readout in the colour tool on this site.
Common mistakes
  • Using too many mid-greys so nothing stands out.
  • Making shadows too light out of fear of going dark.
  • Judging a value against white paper instead of against its neighbours.
Practice exercise

Paint or shade a 5-step and a 9-step value scale. Then do three 2-inch thumbnails of a landscape photo using only three values.