704 nm to RGB & Color Calculator
Convert 704 nm monochromatic spectral light into exact digital sRGB, CIE 1931 tristimulus XYZ coordinates, THz frequency, and photon energy.
Why You See This Color (704 nm)
At 704 nm, photons interact exclusively with Long-wavelength sensitive (L) photoreceptor opsins in the fovea centralis. With a frequency of 425.842 THz and lower photon energy (1.761 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
Datacolor SpyderX Pro
Calibrare monitor rapida cu lens-based color engine

Physics Teacher & Educational Technologist • Brăila, Romania
Related Physics Calculators
Immediate adjacent shorter wavelength.
#FB9700Immediate adjacent longer wavelength.
#F8A000Convert digital display hex codes to linear photon irradiance.
Optics EngineVerify contrast ratios against WCAG 2.1 AA/AAA standards.
Accessibility