| clear blue sky(expression, colour, sky) |
| cobalt blue(shade, colour, expression, blueness, noun) |
| cerulean(noun, shade, colour, adjective, blueness) |
| navy blue(shade, colour, noun, expression, blueness) |
| Prussian blue(shade, colour, noun, expression, blueness) |
| powder blue(shade, colour, noun, expression, blueness) |
| royal blue(shade, colour, noun, expression, blueness) |
| steel blue(shade, colour, noun, expression, blueness) |
| aqua(noun, shade, colour) |
| aquamarine(noun, shade, colour) |
| azure(noun, shade, colour) |
| dark blue(noun, shade, colour) |
| lazuline(noun, shade, colour) |
| navy(noun, shade, colour) |
| peacock blue(noun, shade, colour) |
| sapphire(noun, shade, colour) |
| sky-blue(noun, shade, colour) |
| turquoise(noun, shade, colour) |
| greenish blue(noun, shade, colour) |
| purplish blue(noun, shade, colour) |