How much can the saturation rise?

Up to thirty percent, in one-percent steps, with the slider starting at twenty. It is an addition to the colour's saturation rather than a multiplication of it.

No. Only saturation moves — lightness and hue are left alone, which keeps a colour recognisably in the same family after boosting.

Why does a vivid colour barely change?

Because the setting adds to existing saturation. A colour already near the top of the range has little room left, while a muted one shows the same setting much more strongly.

Can I reduce saturation here?

No. The slider only runs upward from zero, so reducing a colour means using the saturation reducer or the symmetric vibrance adjuster.

How much does thirty percent change the colour?

The percentage is divided by a hundred and added to the OKLCH chroma, so thirty percent is a noticeable change rather than a different colour. Lightness and hue stay where they were, and no chroma figure or before-and-after ratio is reported.

Saturation Booster

Color

Boost saturation: 20%

Result

#004fff

You Might Also Need

Saturation Reducer

Decrease color saturation

Color Lighten Tool

Lighten any color by a percentage

Vibrance Adjuster

Adjust the vibrance of any color

Exposure Adjuster

Adjust the exposure of any color

The saturation booster raises a colour's saturation by a percentage you choose, from 0 to 30 percent, and shows the result beside the original.

What is Saturation Booster?

The layout is two panels. On the left, a colour field opens on a mid blue, and under it a slider labelled Boost saturation runs from zero to thirty percent, opening at twenty. On the right, a card titled Result holds one large swatch showing the boosted colour, and it updates as either control moves.

What the slider does is an addition rather than a multiplier: the number is divided by a hundred and added to the colour's saturation in the perceptual space the rest of this domain works in, so twenty percent means a fifth of the full saturation range more than the colour already had.
That framing matters for a colour that is already vivid — a saturated yellow at ninety percent has little room left and will barely move, while a muted grey-blue at ten percent will change noticeably from the same setting.

Lightness and hue are left alone, which is the property that makes the tool useful rather than merely available. Boosting saturation by adjusting a colour by eye usually drags the hue along with it, and a palette that starts on one orange ends up with three slightly different ones. Here the hue angle is untouched, so a set of colours boosted by the same amount stays within the same families.

The range is deliberately narrow. Thirty percent at the top is a noticeable change and not a garish one, which suits the everyday need: recovering a colour that was desaturated for a background and is being reused as an accent, or pushing a pastel far enough to read as a brand colour. Beyond that the tool will not go, and a colour that needs to be neon has to be built rather than nudged.

What it does not do is report anything. There is no before-and-after ratio, no chroma value, no warning when a boosted colour leaves the printable range and no export — the original and the result sit side by side and that is the whole output. It is also a one-way control: this page only boosts, and reducing saturation is a separate tool with its own slider.

Comparing the two swatches is how the setting gets decided. A boost that changes the colour noticeably without pushing it out of its family is usually what a surface or an accent wanted; a result that reads as a different colour means the setting was too high for that hue, since yellows and greens move further at the same percentage than blues and purples do. Because the tool holds one colour at a time, a palette is normally boosted swatch by swatch with the same setting, which keeps the relationships between them intact.

Limits: one colour, one direction, a maximum of thirty percent, no relative or multiplicative mode, no undo and no value readout beyond the swatch.
As a saturation booster it answers boost color saturation directly, and for anyone wanting to make a color more vivid this is the saturation boost slider that tells you what it did rather than guessing — enough to increase saturation hex values in a palette without shifting their hues.

How to use Saturation Booster

Pick the colour in the field on the left.
Move the Boost saturation slider; it runs from 0 to 30 percent and starts at 20.
Read the result swatch on the right and note the change before applying the same setting to other colours.

When to use Saturation Booster vs related tools

Use this when a colour already in the palette needs more presence without its hue changing. Use the saturation reducer when the direction is the other way, the vibrance adjuster when the slider should cross zero, or the saturation explorer when the whole range needs looking at rather than one step. When the goal is a quieter version the saturation reducer subtracts along the same axis, and the vibrance adjuster moves either way from neutral.

Privacy & Security

This tool runs entirely in your browser — no data ever leaves your device. There is no server round-trip, no upload, no logging, and no account required. Your input is processed locally using client-side JavaScript and is never stored, transmitted, or accessible to anyone else. When you close the tab, everything disappears.