Green Light (530 nm)
566 THz
Green visible light at about 530 nm.
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MeasuredPhysical measurement
Measured directly, or defined by a published standard.
This value is measured, or set by a published standard.
What the four labels meanChecked against sources September 27, 2026
About this number
Green visible light at about 530 nm. The human eye is most sensitive to green light. In daylight, that sensitivity peaks near 555 nm, a slightly longer wavelength than this entry.
Facts
- Frequency
- 566 THz
- Wavelength (electromagnetic wave)
- 530 nm
- Kind of light
- Green (530 nm)
- Kind of statement
- Physical measurement
- Filed under
- Radio & light
Sources
- Definitions of visible light and ultraviolet
Where visible light and ultraviolet begin and end. The authorities do not agree exactly on the limits.
CIE International Lighting Vocabulary, terms 17-21-003 (visible radiation) and 17-21-008 (ultraviolet radiation). ISO 21348. BIPM, definition of the candela at 540 THz (555 nm).
View source: Definitions of visible light and ultraviolet