Which type of pencils are softer and create darker values due to having more graphite in their composition?

B pencils are indeed softer and create darker values because they contain a higher proportion of graphite compared to clay in their composition. The graphite in these pencils allows for smoother application and richer, darker marks on the page. In contrast, H pencils contain more clay, which makes them harder and results in lighter, finer lines. Colored pencils are designed for adding color and do not primarily focus on the black and white values associated with graphite. Graphite pencils could refer to a range including both B and H grades, but specifically B pencils are what are recognized for producing darker values due to their softer nature. Therefore, the emphasis on the characteristics of B pencils emphasizes their distinctive ability to achieve deeper, darker tones in artwork.