When Copper Bluff upon Sounding

#218f43 RGB(33,143,67)

About this color

When Copper Bluff upon Sounding occupies the medium-dark, vivid end of the green spectrum, defined by its coordinates #218f43 — RGB(33, 143, 67).

#218f43RGB(33, 143, 67)

HSL 139° · 63% saturation · 35% lightness

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Psychology

Dark greens evoke dense forests, institution and permanence — think library walls, old maps, and military insignia.

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History

The pigment verdigris — a green formed by the corrosion of copper — was widely used in medieval manuscripts and early oil painting, despite its tendency to darken over time.

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Design use

Practically speaking, this deep green is most at home as a grounding element in print design — covers, footers, section dividers. On screen it suits dashboards and interfaces where a serious tone matters.

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Colour pairings

When it comes to colour harmony, for a natural palette, combine this green with terracotta, ochre, and warm cream. For a bolder approach, its complement — a warm red-magenta — creates immediate impact.

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Color Categories

Color formats

Name
When Copper Bluff upon Sounding
HEX
#218f43
RGB
rgb(33,143,67)
RGB%
rgb(12.9%,56.1%,26.3%)
HSL
hsl(139,63%,35%)
HSV
hsv(139,77%,56%)
CMYK
cmyk(77,0,53,44)
LAB
lab(52,-47,32)
LCH
lch(52,57,146)
sRGB
(0.129,0.561,0.263)
HEX8
#218f43ff
CSS Name
Decimal
033143067

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Color variants

Color info

Lightness
35%
Saturation
63%
Hue
139°
Chroma
57
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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