Light & Optics Labλ = c / f • E = hf

472 nm to RGB & Color Calculator

Convert 472 nm monochromatic spectral light into exact digital sRGB, CIE 1931 tristimulus XYZ coordinates, THz frequency, and photon energy.

CIE 1931 Spectral Synthesis
472 nm
Blue
#0074FF
nm
380 nm (Violet)555 nm (Peak)750 nm (Deep Red)
Frequency
635.154 THz
Photon Energy
2.627 eV
sRGB Channels
0, 116, 255
CIE 1931 XYZ
0.1726, 0.098
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Why You See This Color (472 nm)

At 472 nm, incoming photons stimulate both Short (S) and Medium (M) cone opsins simultaneously. The visual cortex compares the differential ratio between S-cone and M-cone activation, synthesizing the vibrant perception of cyan and sky blue. With an oscillation frequency of 635.154 THz and photon energy of 2.627 eV, this wavelength is converted into sRGB coordinates by projecting its spectral chromaticity point onto the CIE 1931 standard observer locus.

Physical Parameter Breakdown

Wavelength (λ):472 nm (472 × 10⁻⁹ m)
Oscillation Frequency (f):635.154 THz
Photon Quantum Energy (E):2.627 eV
CIE 1931 Tristimulus (XYZ):X:0.1726 Y:0.098 Z:1.1956
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Traian Anghel
Traian AnghelAuthor & Reviewer

Physics Teacher & Educational TechnologistBrăila, Romania

Last Reviewed: August 2026
Wave Lab calculators are constructed using rigorous peer-reviewed physics formulas from verified metrological repositories. Every equation, spectral conversion, and acoustic property is tested against NIST, CIE, and ISO datasets.
Verified Sources:NIST CODATACIE 1931 2° ObserverNASA Glenn Research

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