Light & Optics Labλ = c / f • E = hf

552 nm to RGB & Color Calculator

Convert 552 nm monochromatic spectral light into exact digital sRGB, CIE 1931 tristimulus XYZ coordinates, THz frequency, and photon energy.

CIE 1931 Spectral Synthesis
552 nm
Green
#51FF00
nm
380 nm (Violet)555 nm (Peak)750 nm (Deep Red)
Frequency
543.102 THz
Photon Energy
2.246 eV
sRGB Channels
81, 255, 0
CIE 1931 XYZ
0.462, 0.9972
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Why You See This Color (552 nm)

At 552 nm, the radiation strikes the human retina close to the peak photopic sensitivity curve V(λ) (555 nm). Both M-cones (chlorolabe) and L-cones (erythrolabe) are strongly depolarized, maximizing luminous efficacy per watt of optical power. The visual system perceives this radiant energy (543.102 THz, 2.246 eV) as brilliant emerald green to chartreuse, mapped here to digital sRGB gamut coordinates.

Physical Parameter Breakdown

Wavelength (λ):552 nm (552 × 10⁻⁹ m)
Oscillation Frequency (f):543.102 THz
Photon Quantum Energy (E):2.246 eV
CIE 1931 Tristimulus (XYZ):X:0.462 Y:0.9972 Z:0.0074
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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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