Blue

RAL 5022

Night Blue

RAL 5022 Night Blue is a deep indigo-blue that evokes the color of the sky just after sunset, when the first stars become visible. This dramatic, contemplative shade is specified for planetarium interiors, luxury cinema design, and architectural spaces where an immersive, nocturnal atmosphere is desired. Night Blue carries strong associations with mystery, the cosmos, and intellectual depth, making it a favored choice for observatory buildings, high-end bars, and exclusive lounge environments.

Time9:36 AM
Light
Technical Reference

Color Reference

Hex#2F2A5A
RGBrgb(47, 42, 90)
HSLhsl(246°, 36%, 26%)
CMYKcmyk(48%, 53%, 0%, 65%)
Color Analysis
RGB Composition
R
47
G
42
B
90
Temperature
WarmCool
Contrast Accessibility
White text
13.1:1Pass
Black text
1.6:1Fail

WCAG 2.1 AA requires 4.5:1 contrast for normal text. Results show this color as a background.

Spectrum & Perceptual Position

Hue Spectrum
60°120°180°240°300°360°
CIELAB a*b* Chromaticity
-4004080-4004080a* (Green ← → Red)b* (Blue ← → Yellow)
L* (Lightness)20
a* (Green-Red)16
b* (Blue-Yellow)-28
L* (LCh)20
C* (Chroma)33
h° (Hue)300°

CIELAB is a perceptually uniform color space. Euclidean distance between two colors in this diagram closely matches human visual difference. The dot size shows your selected color; slightly larger dots are the nearest perceptual neighbors.

Color Harmonies

Build a Palette Around Night Blue

Palette Generator

Select a harmony type, then press Space to reroll unlocked colors.

1 locked / 4 free

Reference + opposite hue with tonal variations

Reference
#2
Complementary
#3
Complementary
#4
Complementary
Pairwise Contrast Ratios
1.9:1
·
2.1:1
·
3.9:1
·
2.1:1

Contrast ratios follow WCAG 2.1 guidelines. Green (≥4.5:1) passes AA for normal text. Amber (≥3:1) passes for large text only. Grey indicates low contrast.

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