Light & Optics Labλ = c / f • E = hf

706 nm to RGB & Color Calculator

Convert 706 nm monochromatic spectral light into exact digital sRGB, CIE 1931 tristimulus XYZ coordinates, THz frequency, and photon energy.

CIE 1931 Spectral Synthesis
706 nm
Deep Red
#F6A500
nm
380 nm (Violet)555 nm (Peak)750 nm (Deep Red)
Frequency
424.635 THz
Photon Energy
1.756 eV
sRGB Channels
246, 165, 0
CIE 1931 XYZ
0.003, 0.0026
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Why You See This Color (706 nm)

At 706 nm, photons interact exclusively with Long-wavelength sensitive (L) photoreceptor opsins in the fovea centralis. With a frequency of 424.635 THz and lower photon energy (1.756 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):706 nm (706 × 10⁻⁹ m)
Oscillation Frequency (f):424.635 THz
Photon Quantum Energy (E):1.756 eV
CIE 1931 Tristimulus (XYZ):X:0.003 Y:0.0026 Z:0
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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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