Untroubled Bluff without the Knotting

#15319a RGB(21,49,154)

About this color

Untroubled Bluff without the Knotting is a dark blue with a intense character, positioned at #15319a on the color spectrum.

#15319aRGB(21, 49, 154)

HSL 227° · 76% saturation · 34% lightness

🧠

Psychology

In its darkest registers blue becomes serious and introspective: trustworthy, professional, slightly austere.

🏛️

History

In Japanese aesthetics, blue — particularly indigo — has been a central colour for centuries: the slow-dyed textiles of Tokushima remain prized for their depth and permanence.

✏️

Design use

From a design perspective, this shade excels as a primary background in dark themes, a strong border or divider, or a headline colour against a light surface. Combine with lighter tints of the same hue for a cohesive palette.

🎭

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
Untroubled Bluff without the Knotting
HEX
#15319a
RGB
rgb(21,49,154)
RGB%
rgb(8.2%,19.2%,60.4%)
HSL
hsl(227,76%,34%)
HSV
hsv(227,86%,60%)
CMYK
cmyk(86,68,0,40)
LAB
lab(26,32,-60)
LCH
lch(26,68,298)
sRGB
(0.082,0.192,0.604)
HEX8
#15319aff
CSS Name
Decimal
021049154

Similar colors

Color variants

Color info

Lightness
34%
Saturation
76%
Hue
227°
Chroma
68
Temperature
WarmCool
Contrast Preview
The quick brown fox jumps over the lazy dog

Share