Hi, if it is a 'traditional' colour - ie the colour of actual hair then yes. You can't however have pink, green etc - ie colours that are not actual hair colours. Many people dye their hair on leave but as long as you go back to work and all remnants of purple etc hair is gone then you won't get into trouble. I hope this helps.
A cookie is a small file of letters and numbers that we store on your browser or the hard drive of your computer if you agree. Cookies contain information that is transferred to your computer's hard drive.
These are cookies that are required for the operation of our website. These essential cookies are always enabled because our website won’t work properly without them. You can switch off these cookies in your browser settings but you may then not be able to access all or parts of our website.
These allow us to recognise and count the number of users and to see how users move around our website when they are using it. This helps us to improve the way our website works.