Colour and emotion
The colours of loneliness
Loneliness borrows the colours of sadness: grey, cold blue and black. In South Korea singles mark it with black noodles on Black Day.
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Loneliness has no colour of its own in research. It borrows from sadness: grey, cold blue and black. Painters, film makers and songwriters have given it the blue of evening and of empty streets, and many languages describe a lonely, flat stretch of life as grey. A few customs mark it with black, most famously Black Day in South Korea. The link is real in art and speech, but it has barely been tested, and nothing shows that a colour can make a person lonelier.
What studies find
Colour and emotion studies almost never include loneliness. The 2025 review by Jonauskaite and Mohr covers sadness, boredom and similar low-energy feelings, and finds them tied to grey above all, and to dark and washed-out colours in general. Loneliness probably follows the same pattern, but that is an inference. In the Manchester Color Wheel study, people with depression and anxiety most often picked grey for their mood. Separate research suggests that low mood makes people describe the world as less colourful, though one widely reported experiment claiming that sadness dulls colour vision was withdrawn by its authors. The honest position is that this pairing rests on art, not data.
In language
German has 'grau in grau', grey on grey, for a bleak outlook, and 'grauer Alltag' for the grey daily round. Chinese calls a discouraged person 'grey-hearted' (huixin). English has grey days and the blues. Russian has 'toska zelyonaya', green melancholy, for a dull, aching boredom. In the devotional poetry of north India, the dark blue-black called shyam is the colour of Krishna, and so the colour of the one who is absent. Mirabai's songs of longing return to it again and again. Most languages, though, describe loneliness with emptiness, cold and silence, and leave colour out.
Around the world
South Korea has a day for it. On Black Day, 14 April, people who received nothing on Valentine's Day or White Day meet to eat jajangmyeon, noodles in black bean sauce, sometimes dressed in black. The mood is more wry than sorrowful. In Indian court painting, the heroine who waits for her lover is shown under dark monsoon clouds, and the season's blue-grey stands for separation. In Europe and North America the image is urban: a lit window, a late bar, a blue dusk. The colours differ less than the settings. Nearly everywhere, loneliness is painted in low light.
Where it is used
Picasso's Blue Period gave loneliness its best known look: thin figures, bowed heads and almost nothing but blue. The blues did the same in music. Film makers show isolation by placing one figure in a wide, cool frame, often lit blue or green, and by taking warm colours out. Photographers shoot empty rooms in grey daylight. 'Blue Monday', promoted since 2005 as the loneliest, saddest day of the year, came from a travel advertisement and has no basis in research. Campaigns on loneliness among older people now tend to avoid grey and blue on purpose, and use warm colours to suggest company.
Loneliness in colour, place by place
On Black Day, 14 April, single people gather to eat jajangmyeon, noodles in black bean sauce, a wry answer to Valentine's Day and White Day.
In his Blue Period, about 1901 to 1904, Picasso painted beggars, prisoners and solitary figures in cold blues.
The blues, born among African Americans in the Deep South, made blue the colour of being left alone, and gave English the phrase 'singing the blues'.
In the songs of the Rajasthani poet-saint Mirabai, the dark colour of Krishna, shyam, is the colour of the absent beloved she longs for.
A bleak outlook is 'grau in grau', grey on grey, and the dull daily round is 'grauer Alltag'.
A discouraged person is huixin, 'grey-hearted' or 'ash-hearted', as if the fire had gone out.
'Blue Monday', a day in January promoted since 2005 as the gloomiest of the year, began as a travel company's press release.
Colours that carry loneliness
Sources and further reading
- Picasso's Blue Period on Wikipedia
- Guggenheim Museum: Pablo Picasso, Woman Ironing (1904)
- Jonauskaite and Mohr, Do we feel colours? A systematic review of 128 years of research (Psychonomic Bulletin and Review, 2025)
- Carruthers and colleagues, The Manchester Color Wheel (BMC Medical Research Methodology, 2010)
Original text by the Rang desk, written with AI assistance and checked against the sources above. Meanings of colour vary from place to place and person to person. If we have something wrong, tell us.