Light & Optics Labλ = c / f • E = hf

461 nm to RGB & Color Calculator

Convert 461 nm monochromatic spectral light into exact digital sRGB, CIE 1931 tristimulus XYZ coordinates, THz frequency, and photon energy.

CIE 1931 Spectral Synthesis
461 nm
Blue
#3200FF
nm
380 nm (Violet)555 nm (Peak)750 nm (Deep Red)
Frequency
650.309 THz
Photon Energy
2.689 eV
sRGB Channels
50, 0, 255
CIE 1931 XYZ
0.2729, 0.0585
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Why You See This Color (461 nm)

At 461 nm, incoming photons stimulate both Short (S) and Medium (M) cone opsins simultaneously. The visual cortex compares the differential ratio between S-cone and M-cone activation, synthesizing the vibrant perception of cyan and sky blue. With an oscillation frequency of 650.309 THz and photon energy of 2.689 eV, this wavelength is converted into sRGB coordinates by projecting its spectral chromaticity point onto the CIE 1931 standard observer locus.

Physical Parameter Breakdown

Wavelength (λ):461 nm (461 × 10⁻⁹ m)
Oscillation Frequency (f):650.309 THz
Photon Quantum Energy (E):2.689 eV
CIE 1931 Tristimulus (XYZ):X:0.2729 Y:0.0585 Z:1.6484
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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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