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

591 nm to RGB & Color Calculator

Convert 591 nm monochromatic spectral light into exact digital sRGB, CIE 1931 tristimulus XYZ coordinates, THz frequency, and photon energy.

CIE 1931 Spectral Synthesis
591 nm
Orange
#FF8200
nm
380 nm (Violet)555 nm (Peak)750 nm (Deep Red)
Frequency
507.263 THz
Photon Energy
2.098 eV
sRGB Channels
255, 130, 0
CIE 1931 XYZ
1.0273, 0.7507
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Why You See This Color (591 nm)

At 591 nm, monochromatic electromagnetic waves activate Long (L) cones substantially more than Medium (M) cones, with zero S-cone stimulation. This specific biological excitation ratio is processed by retinal ganglion cells as warm amber and orange. Carrying an energy of 2.098 eV per photon at a frequency of 507.263 THz, this spectral line is reconstructed via standard D65 gamma-corrected sRGB primaries.

Physical Parameter Breakdown

Wavelength (λ):591 nm (591 × 10⁻⁹ m)
Oscillation Frequency (f):507.263 THz
Photon Quantum Energy (E):2.098 eV
CIE 1931 Tristimulus (XYZ):X:1.0273 Y:0.7507 Z:0.0001
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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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