Light & Optics Labλ = c / f • E = hf
750 nm to RGB & Color Calculator
Convert 750 nm monochromatic spectral light into exact digital sRGB, CIE 1931 tristimulus XYZ coordinates, THz frequency, and photon energy.
CIE 1931 Spectral Synthesis
Deep Red750 nm
#00A053
nm
380 nm (Violet)555 nm (Peak)750 nm (Deep Red)
Frequency
399.723 THz
Photon Energy
1.653 eV
sRGB Channels
0, 160, 83
CIE 1931 XYZ
0, 0
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Why You See This Color (750 nm)
At 750 nm, photons interact exclusively with Long-wavelength sensitive (L) photoreceptor opsins in the fovea centralis. With a frequency of 399.723 THz and lower photon energy (1.653 eV), this stimulus yields the deep, saturated red sensation of monochromatic ruby and diode lasers. Near the 700–750 nm boundary, eye sensitivity tapers toward the infrared threshold.
Physical Parameter Breakdown
Wavelength (λ):750 nm (750 × 10⁻⁹ m)
Oscillation Frequency (f):399.723 THz
Photon Quantum Energy (E):1.653 eV
CIE 1931 Tristimulus (XYZ):X:0 Y:0 Z:0
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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