#333640
- RGB
- 51, 54, 64
- Brightness
- 54.4
- HSL (°,%,%)
- 226°, 11%, 23%
- HSV V %
- 25%
- Lab
- 22.7, 1.3, -6.7
- CMYK (%)
- 20%, 16%, 0%, 75%
- PNG size
- 6.0 KB
- Tone / Feel
- very dark, muted cool hue
Black text
1.74:1
Fail (normal) · Fail (large)
White text
12.05:1
AAA (normal) · AAA (large)
Recommended text: White (12.05:1 — AAA / AAA)
Color Profile: #333640
Common Name: Blue Grey
RGB: (51, 54, 64)
HSL: (210°, 11%, 24%)
Contrast vs White: 5.0 (AA Pass)
Contrast vs Black: 12.1 (AA Pass)
Mood: A muted, sophisticated shade, often linked with stability and professionalism. Blue Grey is calming yet assertive, making it a popular choice in environments where focus and a cool, subdued aesthetic are valued. It's frequently seen in corporate branding and modern interior design, particularly in tech and luxury spaces. The balance of grey and blue offers versatility, serving as both a neutral backdrop and a stand-out feature.
Notable Matches:
- Australian Standard AS2700: B62 Midnight Blue (#2B2D35), ΔE=4.30
- British Standard BS 2660: Blue Grey (#333E45), ΔE=4.89
- Pantone FHI: 19-4105 TCX Polar Night (#343540), ΔE=1.14
- Behr Paint: Stiletto (#323947), ΔE=3.18
Why Designers Use It:
- Blue Grey offers a balance between professionalism and warmth, making it ideal for corporate environments, tech companies, and design studios where a clean, modern look is desired.
- Its neutral yet distinctive tone makes it a perfect fit for web and app design, providing a calm backdrop that allows other elements to stand out.
- This color is also a popular choice in automotive and industrial design for its sleek, modern, and practical appearance. It’s commonly used in car interiors, especially for high-end models, as it conveys sophistication without being overly bold.
- The color’s affiliation with the night sky and twilight hours connects it with themes of serenity, mystery, and elegance, making it a natural fit for luxury brands and high-end interiors.
- Regionally, Blue Grey is favored in colder climates, as the cool tones complement the subdued, often grey skies found in places like Northern Europe and parts of North America.