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GamutDesk

Accurate Color Name Finder

Find the closest official English color name from a catalog of 1,500 curated shades using Delta E distance in Lab space.

100% Client-SideZero Data Collection
Target Color
#2563EB
Official Color Name
Royal Blue

Standard dictionary match (#4169E1) • Delta E: 9.92

Technical Specification & Mathematical Principles

Color names are indexed by converting each entry to CIE-Lab coordinates (L*, a*, b*).

The closest matching name is determined by finding min(ΔE) = √[(ΔL*)² + (Δa*)² + (Δb*)²] across the database.

Frequently Asked Questions

The database integrates standard CSS Level 4 named colors, the ISCC-NBS System of Color Designations, and the National Television System Committee (NTSC) historical shade index.

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