spot, blemish, speck, patches
斑 centers on irregular marks on a surface: spots, specks, blemishes, or patches that break an otherwise uniform appearance.
斑 combines 文 (pattern, design) with 玨 (two pieces of jade), suggesting a mottled or spotted pattern like the variegated colors in jade. The exact historical development is uncertain, but the component combination is consistent with the meaning of spots or patches.
Picture two pieces of jade (玨) with a pattern (文) of spots and patches running through them. The jade's surface is marked with irregular specks and blemishes.
For ハン, imagine a spotted handkerchief: 'han' sounds like the first part of 'handkerchief' (ハンカチ), and the cloth is covered with patches and specks.
unevenness (of colour, paint, etc.); irregularity; nonuniformity; blotchiness
Japanese grosbeak
(scattered) spots; specks; speckles
white spot
Oriental odd-tooth snake (Dinodon orientale); Japanese odd-tooth snake
purpura; purple spot
variegated; spotted
Japanese dace (Tribolodon hakonensis)
spots; speckles; spotted pattern; mottled pattern
Mongolian spot; Mongolian blue spot; congenital dermal melanocytosis
cafe-au-lait spot (birthmark)
Laue spot; Laue pattern
Rocky Mountain spotted fever
single part (of a whole); one detail; portion; spot
barred button quail (Turnix suscitator)
erythema infectiosum; slapped cheek syndrome; fifth disease
Rhabdoblatta yayeyamana (species of cockroach)
bloody spots
age-related macular degeneration; AMD; ARMD
age-related macular degeneration; ARMD