Grey

RAL 7015

Slate Grey

RAL 7015 Slate Grey is a dark, blue-toned grey that faithfully replicates the color of natural roofing slate quarried across Wales, Spain, and Scandinavia. This refined shade is specified for metal roofing systems, premium facade panels, and contemporary residential design where a connection to traditional slate architecture is desired. Slate Grey provides a dignified, timeless appearance that ages gracefully and complements both traditional stone buildings and modern glass-and-steel structures.

Time9:36 AM
Light
Technical Reference

Color Reference

Hex#51565C
RGBrgb(81, 86, 92)
HSLhsl(213°, 6%, 34%)
CMYKcmyk(12%, 7%, 0%, 64%)
Color Analysis
RGB Composition
R
81
G
86
B
92
Temperature
WarmCool
Contrast Accessibility
White text
7.4:1Pass
Black text
2.8:1Fail

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)36
a* (Green-Red)-1
b* (Blue-Yellow)-4
L* (LCh)36
C* (Chroma)4
h° (Hue)262°

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 Slate Grey

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
#5
Split Comp +
Pairwise Contrast Ratios
1:1
·
2.1:1
·
3.3:1
·
1.8:1

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.

Ready to Coat in Slate Grey?

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Recommended Powders

Recommended for RAL 7015

Exact (2)

RAL 7015 SatinExact Match
SKU: RAS3-20003Sherwin-WilliamsPowduraAAMA 260325-35 glosssmooth
RAL 7015 High GlossExact Match
SKU: RAS8-00013Sherwin-WilliamsPowduraAAMA 260386-99 glosssmooth

Close (3)

Eclipse GrayClose Match
SKU: PCNT78163PPPG IndustriesCoraflon PlatinumAAMA 260525-40 glosssmooth
Slate GreyClose Match
SKU: 10410-74084-BX55TCI Powder CoatingsTCIAAMA 260435-45 glosssmooth
Slate GreyClose Match
SKU: 038/70019Tiger Drylac USATiger DrylacAAMA 260425-35 glosssmooth

About These Recommendations

These are powder formulations that correspond to this RAL color based on manufacturer data sheets. Exact powders are coded to this specific RAL code. Close powders are visually similar alternatives we have used before. We do not sell powder directly — we use these formulations to coat your parts. Call us to discuss your project and we will confirm the best option for your timeline.

Call to Discuss Your ProjectWe will confirm the best powder and finish for your parts and timeline.