Rough Bluff until the Girding

#647daa RGB(100,125,170)

About this color

Rough Bluff until the Girding is a medium blue with a moderate character, positioned at #647daa on the color spectrum.

#647daaRGB(100, 125, 170)

HSL 219° · 29% saturation · 53% lightness

🧠

Psychology

Mid blue dominates corporate and tech branding precisely because it reads as dependable without being cold.

🏛️

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.

✏️

Design use

In design terms, a mid-toned blue 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.

🎭

Colour pairings

Looking at colour relationships, this blue pairs naturally with warm neutrals — tawny beiges, soft terracottas, aged brass — which amplify its cool character by contrast. Analogous blue-violets and blue-greens give a more cohesive, tonal result.

⚖️ Contrast checker👁 Colour blindness🌈 Gradient🎨 Colour mixer

Color Categories

Color formats

Name
Rough Bluff until the Girding
HEX
#647daa
RGB
rgb(100,125,170)
RGB%
rgb(39.2%,49%,66.7%)
HSL
hsl(219,29%,53%)
HSV
hsv(219,41%,67%)
CMYK
cmyk(41,26,0,33)
LAB
lab(52,3,-27)
LCH
lch(52,27,276)
sRGB
(0.392,0.49,0.667)
HEX8
#647daaff
CSS Name
Decimal
100125170

Similar colors

Color variants

Color info

Lightness
53%
Saturation
29%
Hue
219°
Chroma
27
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

Share