Rome, The Forum with a Rainbow

British Museum, London, UK · 36.7 x 22.9 cm

Dusky Basalt
Dusky Twilight register - warm mid-darks, the palette of dusk and fading light.
Basalt Dark blue-gray - the color of volcanic rock, cool and dense.
Rome, The Forum with a Rainbow by J.M.W. Turner

Color Palette

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Color Profile

Brightness
light
0
100
41.5
dark
Saturation
vivid
0
100
10.7
muted
Warmth
warm
-30
0
+50
5.5
cool
Dominant Hue
#695F5E gray

Distribution

Hue — where on the color wheel
avg hue 28°
Brightness — how dark vs how light
avg L 41.5
darklight
Saturation — gray vs vivid
avg C 10.7
grayvivid

Brightness Heartbeat

Average brightness scanned top → bottom of the painting.

avg L 41.5 L = 0 L = 100

Palette Analysis

"Rome, The Forum with a Rainbow" (1819) reads as a shadowed, muted-saturation warm palette built around Slate and Beige. Color weight is distributed evenly across the top three swatches. A low-prevalence accent at #966951 pulls the eye.

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