— the difference between colors
based on their position on the color wheel
Hue contrast is the contrast of color family
— blue vs. orange, red vs. green, yellow vs. purple.
It is the most expressive form of contrast,
shaping personality, energy, and emotional temperature.
Hue contrast does not guarantee readability.
It creates feeling, not clarity.
Hue contrast is the color conversation
happening beneath the structure.
These phrases give AI clear, predictable direction:
“Increase the hue contrast between these elements.”
“Use a complementary hue for emphasis.”
“Shift this to a cooler hue for a calmer tone.”
“Keep the hue contrast subtle to maintain restraint.”
“Use hue contrast without increasing value contrast.”
This separates color family from lightness
— a crucial distinction.
Each type expresses a different emotional quality.
Two hues can be very different but still unreadable
if their lightness values are similar.
For example:
Hue contrast creates personality.
Value contrast creates clarity.
This is why 'hue contrast' must be paired with
'lightness contrast' for text and UI elements.
Tony de Araujo —New York | Lisbon