International orange

International orange is a color used in the aerospace industry to set objects apart from their surroundings, similar to safety orange, but deeper and with a more reddish tone.

Variations of international orange

Aerospace

International Orange (Aerospace)
Color coordinates
Hex triplet	#FF4F00
sRGBB  (r, g, b)	(255, 79, 0)
CMYKH   (c, m, y, k)	(0, 69, 100, 0)
HSV       (h, s, v)	(19°, 100%, 100%)
Source	[Unsourced]
B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred)

This is the shade used by NASA.

One version of the orange space suits used by NASA

The Bell X1, the first airplane to break the sound barrier, was also painted in International Orange.

The Bell X1

Golden Gate Bridge

International Orange (Golden Gate Bridge)
Color coordinates
Hex triplet	#F04A00
sRGBB  (r, g, b)	(240, 74, 00)
CMYKH   (c, m, y, k)	(0, 69, 100, 6)
HSV       (h, s, v)	(18.5°, 100%, 94.1[1]%)
Source	GGB
B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred)

The Golden Gate Bridge is painted "Golden Gate Bridge International Orange".^[2]

Above is displayed the tone of international orange used to paint the Golden Gate Bridge.

The tone of international orange used to paint the Golden Gate Bridge is slightly lighter than the standard International orange used by military contractors and in engineering (shown below), thus increasing its visibility to ships.

Engineering

International Orange (Engineering)
Color coordinates
Hex triplet	#BA160C
sRGBB  (r, g, b)	(186, 22, 12)
CMYKH   (c, m, y, k)	(0, 88, 93, 27)
HSV       (h, s, v)	(3°, 94%, 73[3]%)
Source	FedStd 595
B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred)

In the adjacent box is displayed the generic tone of international orange used by military contractors and in engineering generally.

The source of this color is Federal Standard 595, a U.S. Federal Government standard set up in 1956 for paint colors which is mostly used by military contractors and also in engineering. International Orange is designated as Federal Standard 595 color #FS 12197.

International orange in human culture

Astronautics

The Advanced Crew Escape Suits pressure suits worn by NASA astronauts and the previous Launch Entry Suit use this color,^[4][5] as opposed to the lighter tone of safety orange used by the United States Air Force's high-altitude suits. This was also planned for the new Constellation Space Suit systems that were to be flight-ready by 2015.

Engineering

The tone of international orange used on the Golden Gate Bridge is a deeper, darker tone of international orange than that used by the aerospace industry. It is considerably closer to red. It is also slightly lighter than the generic tone of international orange used by military contractors and in engineering generally in order to increase the visibility of the bridge to ships. The international orange paint used on the Golden Gate Bridge is specially formulated to protect the bridge from the danger of rust from the moisture of the San Francisco fog that frequently rolls in from the Pacific Ocean through the Golden Gate to San Francisco Bay.

In accordance with air safety regulations, the Tokyo Tower is painted in white and international orange.^[6]

Sports

The World Football League used international orange (instead of the traditional white) for the stripes on their footballs. The league also painted a short international orange mark on the field at the two-yard line.

Trucking

Schneider National paints its trucks "international safety orange".

See also

• Fire engine red
• List of colors
• Safety orange
• School bus yellow

References

External links

• http://www.wbdg.org/ccb/FEDMIL/tte489j.pdf - the 12-page 1988 GSA-approved specifications for International Orange paint, including other "formulas"