The Substantial Brook with Closing

#51d5db RGB(81,213,219)

About this color

The Substantial Brook with Closing carries its coordinates at #51d5db: a medium cyan with vivid saturation.

#51d5dbRGB(81, 213, 219)

HSL 183° · 66% saturation · 59% 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

Practically, this medium cyan is comfortable as 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

For palette building, 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
The Substantial Brook with Closing
HEX
#51d5db
RGB
rgb(81,213,219)
RGB%
rgb(31.8%,83.5%,85.9%)
HSL
hsl(183,66%,59%)
HSV
hsv(183,63%,86%)
CMYK
cmyk(63,3,0,14)
LAB
lab(79,-34,-14)
LCH
lch(79,37,202)
sRGB
(0.318,0.835,0.859)
HEX8
#51d5dbff
CSS Name
Decimal
081213219

Similar colors

Color variants

Color info

Lightness
59%
Saturation
66%
Hue
183°
Chroma
37
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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