Monochromatic Colour Palette Generator
Pick a base colour and instantly get a five-step monochromatic palette, using one hue across a range of lightness values. Perfect for calm, cohesive artwork and colour studies.
How to Use This Tool
Enter or pick a base colour above and click "Generate Palette". The tool creates five swatches: your base colour plus two darker and two lighter versions, all sharing the exact same hue and saturation.
How the Maths Works
The tool converts your base colour to the HSL (Hue, Saturation, Lightness) colour model, then keeps the hue and saturation completely fixed while shifting only the lightness value by -40, -20, 0, +20 and +40 percentage points (clamped between 5% and 95% so colours never become pure black or white). Each result is converted back to HEX and RGB for display.
Monochromatic vs Tints & Shades
This is different from our Tints & Shades Generator, which simulates mixing paint with white or black — a process that also reduces saturation as pigment is added. This tool works purely in the HSL colour model, so saturation stays constant and only lightness changes. Both approaches are useful; this one is closer to how designers describe a strict "monochromatic" scheme, while tints and shades are closer to how paint actually behaves on the palette.
Worked Example
Starting from #4A7C59 (a muted green, H=138°, S=25%, L=39%), the five-step palette is: #0A100B (darkest), #243C2B (darker), #4A7C59 (base), #7BB18B (lighter) and #BBD7C4 (lightest).
Using Monochromatic Palettes in Your Artwork
A monochromatic palette is one of the easiest ways to create a calm, unified painting or design, since every colour shares the same underlying hue. It works especially well for backgrounds, value studies, and pieces where you want the composition or subject matter to carry the visual interest rather than colour contrast.
Frequently Asked Questions
What is a monochromatic colour scheme?
A monochromatic colour scheme uses a single hue at different levels of lightness (and sometimes saturation). This tool generates one at five lightness steps while keeping hue and saturation fixed.
How does this tool generate the five colours?
It converts your base colour to HSL, then creates four new colours by shifting the lightness by -40, -20, +20 and +40 percentage points, keeping hue and saturation unchanged, and converts each result back to HEX and RGB.
How is this different from the Tints & Shades Generator?
Tints and shades simulate mixing white or black paint into a colour, which also reduces saturation. This tool changes only lightness in the HSL model, keeping saturation constant throughout.
Why are the darkest and lightest swatches capped?
Lightness is clamped between 5% and 95% so that no swatch becomes pure black or pure white, keeping every colour in the palette visually distinct and useful.
Can I use this for digital design as well as painting?
Yes. Monochromatic palettes are widely used in both digital design and traditional painting for creating calm, cohesive colour schemes.
Will these five colours match my paint mixes exactly?
Not exactly. These are digital HEX/RGB values. Actual paint mixing results depend on your specific pigments, paper or canvas and lighting, so treat these as a starting reference.
Can I save the colours I generate?
Yes, use the copy button under each swatch to copy its HEX code, then paste it into your own notes or design software.
Is this tool free to use?
Yes, this tool is completely free to use with no sign-up required.
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Browse All Colour Tools Shop Art KitsPlease note: Digital colour values shown here are approximate and for planning and educational purposes only. Screens, printers, paint brands, pigments, paper and lighting conditions can all affect how a colour actually appears in real life. Always test your paint mixes on a scrap surface before applying them to your artwork.