When Natural Brook among Delineating

#63657e RGB(99,101,126)

About this color

When Natural Brook among Delineating reads as medium-dark and muted — a blue tone recorded at #63657e, RGB(99, 101, 126).

#63657eRGB(99, 101, 126)

HSL 236° · 12% saturation · 44% lightness

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Psychology

Blue at medium lightness is the colour of trust and communication — widely associated with stability, focus, and honesty.

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History

The ancient Egyptians were among the first to produce blue pigment artificially — Egyptian blue, made from copper and sand, coloured the walls of pharaonic tombs.

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Design use

At medium lightness, this blue is flexible enough to serve 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

In terms of colour combinations, complement this blue with amber and warm orange for high-contrast energy, or stay within blue-green and violet neighbours for a serene, cohesive feel.

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Color formats

Name
When Natural Brook among Delineating
HEX
#63657e
RGB
rgb(99,101,126)
RGB%
rgb(38.8%,39.6%,49.4%)
HSL
hsl(236,12%,44%)
HSV
hsv(236,21%,49%)
CMYK
cmyk(21,20,0,51)
LAB
lab(43,5,-14)
LCH
lch(43,15,290)
sRGB
(0.388,0.396,0.494)
HEX8
#63657eff
CSS Name
Decimal
099101126

Similar colors

Color variants

Color info

Lightness
44%
Saturation
12%
Hue
236°
Chroma
15
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

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