One of the easiest ways to make what you write or say more interesting is to improve your vocabulary. Use a variety of adjectives, verbs and nouns to add interest and detail. Here are different ways to talk or write about colour.
blood red = red the colour of blood
russet = a red-brown colour. Russet is also the name of a variety of apple
post-box red = a bright red colour, used to paint post boxes in the UK
fire-engine red = a bright red colour, the same as on fire engines
auburn = a dark-red colour used to describe hair
strawberry-blond = a very light red / brown colour also used to describe hair
rust = the colour of metal which goes dark red when it is corroded by water or rain
terracotta = a dull red-brown or brick colour, the same colour as floor tiles
burnt orange = dark orange
salmon = the pink colour you find in uncooked salmon
fuschia = a bright pink. Fuschia is a type of flower
sky blue = the colour of the sky (generally a light blue colour – the one you see when you're above the clouds in an aeroplane)
eggshell blue = a light blue colour that you find in birds' eggshells
navy blue = a dark blue / black colour
baby blue = the light blue colour that people use when a baby boy is born
powder blue = a very light, pastel blue colour
aubergine = dark blue/red colour of the aubergine vegetable
burgundy = a dark blue / red colour of burgundy wine (same as aubergine)
lavender = a lighter blue / red colour of the lavender plant
plum = a darker blue / red colour of plums
sea-green = the green of the sea
olive green = a darker green – the colour of olives
khaki = a green-brown colour used in military uniforms
moss green = the dark green colour of moss (a plant that grows on or between stones, and on trees)
bottle green = a dark green used in glass bottles of wine or beer
pea green = the light green colour of fresh peas
lime green = the bright green colour of limes
mint = the colour of mint leaves
acid yellow = a bright yellow
mustard yellow = the darker yellow colour of mustard
muddy brown = the dark brown colour of mud
mousy brown = the light brown / grey colour of mice fur
grey-blue = a light colour between grey and blue often used to describe the sea, sky or someone's eyes
gunmetal grey = a darker grey, the colour of guns
off-white = a colour that isn't completely white
ivory = the colour of elephant tusks