CS ADR-DSN.U.935 Colours for markings, signs and panels

(a)The specifications in surface colours given below apply only to freshly coloured surfaces. Colours used for markings, signs, and panels usually change with time and, therefore, require renewal.

(b)The specifications in paragraph (f) below for internally illuminated panels are interim in nature and are based on the CIE specifications for internally illuminated signs. It is intended that these specifications should be reviewed and updated as and when CIE develops specifications for internally illuminated panels.

(c)The chromaticities and luminance factors of ordinary colours, colours of retroreflective materials, and colours of internally illuminated signs and panels should be determined under the following standard conditions:

(1)angle of illumination: 45°;

(2)direction of view: perpendicular to surface; and

(3)illuminant: CIE standard illuminant D65.

(d)The chromaticity and luminance factors of ordinary colours for markings and externally illuminated signs and panels should be within the following boundaries when determined under standard conditions.

CIE Equations (see Figure U-2):

(1)Red

Purple boundary y = 0.345 – 0.051x

White boundary y = 0.910 – x

Orange boundary y = 0.314 + 0.047x

Luminance factor β = 0.07 (minimum)

(2)Orange

Red boundary y = 0.285 + 0.100x

White boundary y = 0.940 – x

Yellow boundary y = 0.250 + 0.220x

Luminance factor β = 0.20 (minimum)

(3)Yellow

Orange boundary y = 0.108 + 0.707x

White boundary y = 0.910 – x

Green boundary y = 1.35x – 0.093

Luminance factor β = 0.45 (minimum)

(4)White

Purple boundary y = 0.010 + x

Blue boundary y = 0.610 – x

Green boundary y = 0.030 + x

Yellow boundary y = 0.710 – x

Luminance factor β = 0.75 (minimum)

(5)Black

Purple boundary y = x – 0.030

Blue boundary y = 0.570 – x

Green boundary y = 0.050 + x

Yellow boundary y = 0.740 – x

Luminance factor β = 0.03 (maximum)

(6)Yellowish green

Green boundary y = 1.317x + 0.4

White boundary y = 0.910 – x

Yellow boundary y = 0.867x + 0.4

(7)Green

Yellow boundary x = 0.313

White boundary y = 0.243 + 0.670x

Blue boundary y = 0.493 – 0.524x

Luminance factor β = 0.10 (minimum)

The small separation between surface red and surface orange is not sufficient to ensure the distinction of these colours when seen separately.

(e)The chromaticity and luminance factors of colours of retroreflective materials for markings, signs, and panels should be within the following boundaries when determined under standard conditions.

CIE Equations (see Figure U-3):

(1)Red

Purple boundary y = 0.345 – 0.051x

White boundary y = 0.910 – x

Orange boundary y = 0.314 + 0.047x

Luminance factor β = 0.03 (minimum)

(2)Orange

Red boundary y = 0.265 + 0.205x

White boundary y = 0.910 – x

Yellow boundary y = 0.207 + 0.390x

Luminance factor β = 0.14 (minimum)

(3)Yellow

Orange boundary y = 0.160 + 0.540x

White boundary y = 0.910 – x

Green boundary y = 1.35x – 0.093

Luminance factor β = 0.16 (minimum)

(4)White

Purple boundary y = x

Blue boundary y = 0.610 – x

Green boundary y = 0.040 + x

Yellow boundary y = 0.710 – x

Luminance factor β = 0.27 (minimum)

(5)Blue

Green boundary y = 0.118 + 0.675x

White boundary y = 0.370 – x

Purple boundary y = 1.65x – 0.187

Luminance factor β = 0.01 (minimum)

(6)Green

Yellow boundary y = 0.711 – 1.22x

White boundary y = 0.243 + 0.670x

Blue boundary y = 0.405 – 0.243x

Luminance factor β = 0.03 (minimum)

(f)The chromaticity and luminance factors of colours for luminescent or internally illuminated signs and panels should be within the following boundaries when determined under standard conditions.

CIE Equations (see Figure U-4):

(1)Red

Purple boundary y = 0.345 – 0.051x

White boundary y = 0.910 – x

Orange boundary y = 0.314 + 0.047x

Luminance factor

(day condition) β = 0.07 (minimum)

Relative luminance to white (night condition) 5 % (minimum) 20 % (max)

(2)Yellow

Orange boundary y = 0.108 + 0.707x

White boundary y = 0.910 – x

Green boundary y = 1.35x – 0.093

Luminance factor

(day condition) β = 0.45 (minimum)

Relative luminance to white (night condition) 30 % (minimum) 80 % (max)

(3)White

Purple boundary y = 0.010 + x

Blue boundary y = 0.610 – x

Green boundary y = 0.030 + x

Yellow boundary y = 0.710 – x

Luminance factor

(day condition) β = 0.75 (minimum)

Relative luminance to white (night conditions) 100 %

(4)Black

Purple boundary y = x – 0.030

Blue boundary y = 0.570 – x

Green boundary y = 0.050 + x

Yellow boundary y = 0.740 – x

Luminance factor

(day condition) β = 0.03 (max)

Relative luminance to white (night condition) 0 % (minimum) 2 % (maximum)

(5)Green

Yellow boundary x = 0.313

White boundary y = 0.243 + 0.670x

Blue boundary y = 0.493 – 0.524x

Luminance factor

(day conditions) β = 0.10 minimum

Relative luminance to white (night conditions) 5 % (minimum) 30 % (maximum)

[Figure or form omitted from this preview — available in the Avioverse workspace library.]

Figure U-2. Ordinary colours for markings and externally illuminated signs and panels

[Figure or form omitted from this preview — available in the Avioverse workspace library.]

Figure U-3. Colours of retroreflective materials for markings, signs and panels

[Figure or form omitted from this preview — available in the Avioverse workspace library.]

Figure U-4. Colours of luminescent or internally illuminated signs and panels

[Issue: ADR-DSN/3]

[Issue: ADR-DSN/6]