Table 5. Hues for probed stimulus pairs within and across the English blue-green, Berinmo wor-nol, and Himba dumbu-burou boundaries.

Any stimulus pair that includes a boundary color is considered to be a cross-category pair. All hues are at value (lightness) level 5, and chroma (saturation) level 8. 1s denotes a 1-step pair; 2s denotes a 2-step pair.

English blue-green stimuli (boundary color = 7.5BG)
within	across
5B-2.5B (1s)	7.5BG-5BG (1s)
5B-10BG (2s)	2.5B-7.5BG (2s)
5BG-2.5BG (1s)	10BG-7.5BG (1s)
5BG-10G (2s)	10BG-5BG (2s)
Berinmo wor-nol stimuli (boundary color = 5GY)
within	across
7.5Y-10Y (1s)	5GY-7.5GY (1s)
7.5Y-2.5GY (2s)	10Y-5GY (2s)
7.5GY-10GY (1s)	2.5GY-5GY (1s)
7.5GY-2.5G (2s)	2.5GY-7.5GY (2s)
Himba dumbu-burou stimuli (boundary color = 7.5GY)
within	across
7.5Y-10Y (1s)	5GY-7.5GY (1s)
7.5Y-2.5GY (2s)	2.5GY-7.5GY (2s)
2.5GY-5GY (1s)	7.5GY-10GY (1s)
10Y-5GY (2s)	7.5GY-2.5G (2s)