mdsh.com/wiki

See here for a demonstration of RGB bars (100%, 75% and EBU) and their conversion to YUV in BT.601 and BT.709 colour spaces: http://mdsh.com/RGB-YUV/

• ITU-R Recommendation BT.601 - Rec. 601 or BT.601 or its former name CCIR 601

• ITU-R Recommendation BT.709 - Rec. 709 or BT.709

• Society of Motion Picture and Television Engineers SMPTE-170M ("Television-Composite Analog Video Signal-NTSC for Studio Applications") or bt470bg

• sRGB