Blue

RAL 5003

Sapphire Blue

RAL 5003 Sapphire Blue is a dark, jewel-toned blue named after the precious gemstone renowned for its depth and clarity. This sophisticated shade carries an air of exclusivity and permanence, making it a preferred choice for luxury automotive finishes, corporate architecture, and high-end facade systems. Sapphire Blue provides a refined alternative to standard dark blues, with enough warmth to avoid appearing cold or sterile in large-scale architectural applications.

Time9:36 AM
Light
Technical Reference

Color Reference

Hex#2A3756
RGBrgb(42, 55, 86)
HSLhsl(222°, 34%, 25%)
CMYKcmyk(51%, 36%, 0%, 66%)
Color Analysis
RGB Composition
R
42
G
55
B
86
Temperature
WarmCool
Contrast Accessibility
White text
11.8:1Pass
Black text
1.8:1Fail

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)23
a* (Green-Red)4
b* (Blue-Yellow)-20
L* (LCh)23
C* (Chroma)21
h° (Hue)282°

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 Sapphire 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
#5
Split Comp +
Pairwise Contrast Ratios
1.3:1
·
1.9:1
·
2.5:1
·
1.5:1

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 Sapphire Blue?

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Recommended Powders

Recommended for RAL 5003

Exact (2)

RAL 5003 SatinExact Match
SKU: RLS3-20003Sherwin-WilliamsPowduraAAMA 260325-35 glosssmooth
RAL 5003 High GlossExact Match
SKU: RLS8-00013Sherwin-WilliamsPowduraAAMA 260386-99 glosssmooth

Close (3)

Anodic SapphireClose Match
SKU: AE20105000520Axalta Coating SystemsAlestaAAMA 260320-30 glossbonded metallic
Brigade MatteClose Match
SKU: PCNT59158PPPG IndustriesCoraflon PlatinumAAMA 260510-20 glosssmooth
Nitro Blue TextureClose Match
SKU: HLT2-C0006Sherwin-WilliamsPowdura5-15 glosstexture

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.