The Pantone Matching System (PMS) is a set of standard colour values used primarily in printing and the manufacturing of coloured fabric, paint and plastics. Pantone values are a standard when dealing with colour precision. Hexadecimal (hex) is the number value assigned to colours on the web. The alphanumeric hex value is used in HTML to translate into colours on the screen.

- Skill level:
- Moderate

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## Instructions

- 1
Obtain the RGB (red, green and blue) colour values of the colour you wish to convert from Pantone. Pantone guides and chip sets are available from Pantone. Sea green has RGB values of R=51, G=219 and B=153. We’ll use this example to illustrate how to convert Pantone to Hexadecimal.

- 2
Calculate the value of Red. Divide the value of Red (51) by 16. Round the resulting value of 3.1875 to the nearest integer--3 becomes the first number of the hexadecimal formula. Multiply the remainder (0.1875) by 16, which equals 3--the second number of the hexadecimal number. Red (51) therefore translates to 33 in hex.

Use this formula for each RGB value. For integers and remainders of 10 to 15, translate the two-digit number into a letter: 10=A, 11=B, 12=C, 13=D, 14=E and 15=F.

- 3
Calculate the value of Green. The Green value of 219 translates to DB: 219 divided by 16 equals 13.69 which translates to D. Multiplying 0.69 by 16 equals 11 which translates to B.

- 4
Calculate the value of Blue. The Blue value of 153 translates to 99: 153 divided by 16 equals 9. And 0.5625 multiplied by 16 equals 9.

- 5
String the three values of RGB together to get the hexadecimal value. For the example of sea green, the hexadecimal value is 33DB99