What makes a color a pastel?

A pastel is a color with high lightness and modest saturation, so it appears soft and washed-out rather than vivid. In HSL terms that means a lightness around 80 to 92 percent with saturation kept below roughly 60 percent.

How are the harmonies built?

A base hue is chosen at random on the 360-degree color wheel. Analogous palettes step the hue by small offsets around the base; complementary palettes pair the base with the hue 180 degrees opposite; random spreads hues freely. All are then forced into the pastel lightness and saturation range.

Are these accessible for text?

Pastels are light by design, so they suit backgrounds and accents more than body text on white. For readable text, pair a pastel background with a dark foreground and check the contrast ratio meets at least 4.5 to 1.

Can I get the same palette again?

Each generation is random, so palettes differ every time. Copy or note the hex codes you like, because regenerating will not reproduce them.

What format are the colors in?

Each swatch shows a hex code such as #F4D9E6, which works directly in CSS, design tools, and most graphics software. The underlying values are computed in HSL and converted to hex.

What is the Pastel Color Palette Generator?

Generates harmonious pastel color palettes using HSL with high lightness and low-to-moderate saturation. Copy hex codes for children's apps, wellness products, and soft-brand identities. Runs entirely in your browser. It runs free in your browser on Gera Tools, with nothing uploaded.

Pastel Color Palette Generator

Name: Pastel Color Palette Generator
Creator: Gera Tools
License: https://creativecommons.org/licenses/by/4.0/

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This generator builds soft, calming pastel palettes that suit children’s apps, wellness brands, and any design that needs a gentle feel. Colors are computed in HSL and converted to hex so you can copy them straight into your work.

What makes pastels pastels

A pastel is defined by two properties in HSL (hue, saturation, lightness) colour space:

High lightness — typically 80–92%. This is what gives pastels their airy, washed-out appearance.
Restrained saturation — roughly 35–60%. Enough colour to be identifiable, not enough to feel vivid or intense.

Reduce lightness into the 60s and you get muted mid-tones. Push saturation above 80% and you get jewel tones. Pastels live in the gentle corner of colour space — which is exactly why they suit contexts where you want to calm rather than excite.

How it works

The generator:

Picks a base hue at random on the 0–360° wheel.
Derives related hues by the chosen harmony — analogous (small steps around the base), complementary (base plus the opposite hue at +180°), or random.
Forces every colour into the pastel zone: lightness 80–92% and saturation 35–60%.

Each HSL colour is then converted to a hex string for display and copying.

Choosing a harmony

Analogous palettes step the hue in small increments around the base — for example, if the base is a soft lavender, you might get pale lilac, dusty rose, and blush pink as neighbours on the wheel. These palettes feel the most serene and cohesive; they are rarely wrong for wellness, baby, or spa branding.

Complementary palettes pair the base hue with the colour directly opposite on the wheel (+180°). Even in pastel range, complementary pairs create gentle visual contrast — a soft mint alongside a muted coral, for example. Good for designs where two things need to be distinguished without clashing.

Random spreads the five hues freely across the wheel. Results are less predictable but occasionally produce unexpected combinations that feel fresh and editorial.

Practical design tips

For backgrounds and surfaces: pastels are designed for this. A light pastel background with dark body text easily achieves the 4.5:1 contrast ratio required by WCAG AA.
For text on pastel: the reverse is harder. Pastel-coloured text on a white background often fails contrast requirements. Always check with a contrast tool before using pastel text.
For UI components: pastel borders and fills work well on cards, tags, and pills — they add colour without competing with the content inside.
For brand palettes: regenerate until you find a base hue that feels right, then note the hex codes for the swatches you want to keep. Because each run is randomised, you will not get the same set again.
For print: convert the hex to CMYK before sending to print, since screens and printers render colour differently. Your designer or print service can do this from the hex value.