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Reference Name: ROMM RGB

Definition: ISO 22028-2:2013

Responsible Organization: International Standard defining this colour encoding published by ISO, Geneva (document available through National Standards Bodies). Characterisation data derived from this was defined by ICC.

Contact Information:
ICC Technical Secretary
email: [email protected]


Documentation source see ISO 22028-2:2013 and ROMM RGB.pdf.

Electronic data source: Equations defining characterisation in ROMM RGB.pdf


Color space

Type: Colorimetric RGB color space

Color gamut: Extended

RGB primaries: See ROMM RGB.pdf

Color component transfer function: See ROMM RGB.pdf

White point luminance: 142 cd/m2

White point chromaticity: x = 0.3457, y = 0.3585 (D50)

Encoding Range: linear RGB: 0.0 to 1.0

Bit depth: 8, 12, 16

Image state: Output-referred (print)

Reference viewing environment

Image background (proximal field): Unspecified

Viewing surround: 32 cd/m2

Ambient illuminance: 503 lux

Adapted white point luminance: 160 cd/m2

Adapted white point chromaticity: x = 0.3457, y = 0.3585 (D50)

Reference medium

White point luminance: 142 cd/m2

White point chromaticity: x = 0.3457, y = 0.3585 (D50)

Black point luminance: 0.5 cd/m2

Black point chromaticity: x = 0.3457, y = 0.3585 (D50)


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