HEX vs Pantone: Why Screen Colors and Print Colors Differ

A HEX code such as #1E88E5 and a Pantone spot color can both describe “a medium blue” — but they work in completely different ways.

HEX and RGB: colors made of light

A HEX code is just a compact way of writing an RGB color: #1E88E5 means red 30, green 136, blue 229. Screens create color by emitting light from red, green and blue sub-pixels. Because light is additive, screens can show very bright, saturated colors.

Pantone: colors made of ink

A Pantone color is a physical ink mixed to a fixed formula. Printed color is reflected light: the paper reflects light and the ink absorbs part of it. Inks can’t glow, so some screen colors — neon greens, electric blues, very bright purples — simply have no exact printed equivalent.

Why a conversion is always “closest”, not “exact”

Converting HEX to Pantone means finding the ink that looks most like the screen color. A good converter:

1. Converts the HEX value to CIE L*a*b*, a color space modelled on human vision.
2. Compares it with every Pantone reference color.
3. Ranks the results by ΔE (Delta E) using the CIEDE2000 formula.

ΔE00	What it means
< 1	Practically identical
1 – 2.5	Close commercial match
2.5 – 5	Noticeable difference
> 5	Clearly different color

Practical tips

• Design for print in print colors. If a logo will be printed, pick the Pantone color first and use its HEX value on screen.
• Calibrate your monitor, or your screen color won’t be a reliable reference.
• Approve colors on paper. Use a physical Pantone guide for final sign-off.

Ready to try it? Use the HEX to Pantone converter or go the other way with Pantone to HEX.