HSV Adjust

Overview

The quickest node for shifting hue, saturation, and value across an entire image. It is the shortest route to color variants: rotating hue alone can batch-produce green grass, dry grass, and a toxic swamp from the same asset.

Usage tips

• The go-to color-variant setup: place this node at the end of the finished graph and switch hue through variants or a variable. For palette-managed assets, palette_adjust_hsv fits the workflow better.
• Reduce saturation for subdued or aged colors (-0.3 to -0.6), and increase it for vivid colors. Because ±1 is the limit, start with saturation for large changes to avoid breaking the image.
• If brightness is the main goal, brightness-family nodes or tone_curve also let you control contrast and are usually a better fit than value.
• Hue wraps around, completing a full cycle over ±180°. A small shift of about +30° is useful for changes in time of day, such as noon → sunset.

Common pitfalls

• Gray, white, and black do not change: rotating hue cannot affect zero-saturation colors. Use gradient_map or color_select_replace to color neutrals.
• Perceived brightness is inconsistent: HSV value does not match perceptual brightness; blue and yellow at the same V look different. Use oklch_adjust, which operates in a perceptually uniform color space.
• Indexed-color asset colors no longer align: this node rewrites pixel colors, so their palette-index mapping is lost. For palette workflows, adjust the palette with palette_adjust_hsv instead.

Technical details

The node converts RGB to HSV, adds the parameter values, then converts HSV back to RGB. Hue wraps every 360°.

Related nodes

• oklch_adjust — perceptually uniform color adjustment when appearance-based brightness matters
• palette_adjust_hsv — applies the same operation to a palette rather than an image
• tone_curve / brightness — adjustments focused on luminance and contrast
• color_select_replace — replace only a specific color