Wave Lab
Light & Optics Labλ = c / f • E = hf

569 nm to RGB & Color Calculator

Convert 569 nm monochromatic spectral light into exact digital sRGB, CIE 1931 tristimulus XYZ coordinates, THz frequency, and photon energy.

CIE 1931 Spectral Synthesis
569 nm
Yellow
#F7FF00
nm
380 nm (Violet)555 nm (Peak)750 nm (Deep Red)
Frequency
526.876 THz
Photon Energy
2.179 eV
sRGB Channels
247, 255, 0
CIE 1931 XYZ
0.7543, 0.956
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Why You See This Color (569 nm)

At 569 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 (526.876 THz, 2.179 eV) as brilliant emerald green to chartreuse, mapped here to digital sRGB gamut coordinates.

Physical Parameter Breakdown

Wavelength (λ):569 nm (569 × 10⁻⁹ m)
Oscillation Frequency (f):526.876 THz
Photon Quantum Energy (E):2.179 eV
CIE 1931 Tristimulus (XYZ):X:0.7543 Y:0.956 Z:0.0015
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Traian Anghel
Traian AnghelAuthor & Reviewer

Physics Teacher & Educational Technologist • Brăila, 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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