RAL Design

RAL 350 60 05

Muted Fossil Grey

RAL 350 60 05 Muted Fossil Grey occupies hue 350, lightness 60, and a minimal chroma of 05, a near-neutral mid-light tone that barely hints at warm amber beneath its grey surface, like the blush of fossilised limestone in overcast light. It is a natural choice for contemporary office wall surfaces, minimalist interior schemes, and architectural facade elements. The very restrained saturation gives it a timeless, architectural quality that blends seamlessly with concrete, glass, and brushed steel.

Time9:36 AM
Light
Technical Reference

Color Reference

Hex#8C8884
RGBrgb(140, 136, 132)
HSLhsl(30°, 3%, 53%)
CMYKcmyk(0%, 3%, 6%, 45%)
RAL Design HLC
Hue350°
Lightness60
Chroma5

The RAL Design system uses Hue-Lightness-Chroma (HLC) notation. Hue describes the color family (0-360°), Lightness describes brightness (0-100), and Chroma describes saturation intensity (0-100+).

Color Analysis
RGB Composition
R
140
G
136
B
132
Temperature
WarmCool
Contrast Accessibility
White text
3.5:1Fail
Black text
6:1Pass

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
-3003060-3003060a* (Green ← → Red)b* (Blue ← → Yellow)
L* (Lightness)57
a* (Green-Red)1
b* (Blue-Yellow)3
L* (LCh)57
C* (Chroma)3
h° (Hue)75°

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 Muted Fossil Grey

Palette Generator

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

1 locked / 4 free

Reference + opposite hue with tonal variations

#2
Complementary
#3
Complementary
#4
Complementary
#5
Split Comp +
Pairwise Contrast Ratios
1:1
·
1.5:1
·
2.7:1
·
2.3:1

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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