NCS Color Converter

Convert Natural Color System (NCS) codes to hex and RGB values

Conversion Mode

NCS Code Format

S = Second edition standard

First 2 digits = Blackness (00-99)

Second 2 digits = Chromaticness (00-99)

Hue notation = Position between elementary colors

Example: S 2030-B means 20% blackness, 30% chromaticness, Blue hue

About NCS

The Natural Color System (NCS) is based on how humans perceive color, using six elementary colors: white, black, yellow, red, blue, and green.

NCS is widely used in Scandinavia and internationally for architecture, interior design, and product design.

Note: Digital conversions are approximations. Use official NCS color samples for accurate matching.

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Editorial Note

MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: NIST Guide to SI Units

by National Institute of Standards

🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.