Plain Brook out Extending

#21ab7c RGB(33,171,124)

About this color

Plain Brook out Extending settles into a medium-dark cyan territory with a vivid quality that feels cool — captured at #21ab7c, RGB(33, 171, 124).

#21ab7cRGB(33, 171, 124)

HSL 160° · 68% saturation · 40% lightness

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Psychology

Mid cyan is strongly associated with technology, precision, and a certain crisp modernity.

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History

Cyan as a printing ink became central to modern colour reproduction — the C in CMYK — because its complement to red allows the full printable colour range.

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Design use

In design terms, a mid-toned cyan like this handles accent colours, call-to-action buttons, and icon fills — it holds its own without overwhelming adjacent elements. Always check WCAG contrast ratios before using it under or over text.

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Colour pairings

Looking at colour relationships, cyan complements warm reds and red-oranges — a palette of technological energy. For calmer use, pair with white, light grey, and the lightest tints of the same hue.

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Color Categories

Color formats

Name
Plain Brook out Extending
HEX
#21ab7c
RGB
rgb(33,171,124)
RGB%
rgb(12.9%,67.1%,48.6%)
HSL
hsl(160,68%,40%)
HSV
hsv(160,81%,67%)
CMYK
cmyk(81,0,27,33)
LAB
lab(62,-47,14)
LCH
lch(62,49,163)
sRGB
(0.129,0.671,0.486)
HEX8
#21ab7cff
CSS Name
Decimal
033171124

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Color variants

Color info

Lightness
40%
Saturation
68%
Hue
160°
Chroma
49
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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