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#646C64

Brightness
104.8
HSL (°,%,%)
120°, 4%, 41%
HSV V %
42%
Lab
44.7, -4.7, 3.4
PNG size
5.2 KB
Tone / Feel
dark, muted cool hue
Black text 3.87:1 Fail (normal) · AA (large) (large)
White text 5.43:1 AA (normal) · AAA (large) (large)

Recommended text: White (5.43:1 — AA / AAA (large))

Color Profile: #646C64

Common Name: Gunmetal Gray

RGB: (100, 108, 100)

HSL: (120, 5%, 41%)

Contrast vs White: 6.5:1 (AA Pass)

Contrast vs Black: 10.2:1 (AAA Pass)

Mood: This deep, muted gray brings an aura of strength and stability. It is often seen in contemporary designs, evoking a sense of sophistication with a quiet, understated elegance. Frequently used in industrial and automotive contexts, it exudes modernity and professionalism.

Notable Matches:

  • PPG Paint: Gunmetal Gray (#646C64) – Delta E: 0.00
  • Dulux: Forest Grey (#646967) – Delta E: 3.89
  • BS 381C: Slate (#6F7264) – Delta E: 4.84
  • Munsell: 10g 4/1 (#5A6661) – Delta E: 3.57

Why Designers Use It:

  • Versatility: #646C64 is a highly versatile color that works well in a variety of design contexts, particularly in modern interiors, automotive designs, and corporate branding. Its neutral yet sophisticated nature makes it suitable for both minimalist and industrial themes.
  • Industry Uses: This hue is commonly found in automotive interiors, high-end tech products, and construction designs. It’s frequently employed in materials such as metal, matte finishes, and textiles that require durability with a polished, neutral aesthetic.
  • Trend Alignment: As a tone that exudes modernity, it is often associated with a refined, timeless quality. While its use has grown in popularity in recent years, especially in the technology sector, its muted appearance also makes it a classic choice for long-lasting visual appeal.
  • Material & Nature Influence: The color is inspired by the metallic elements and finishes used in automotive manufacturing, where this subtle yet durable gray finds its roots. It may also have connections to the idea of oxidized metals and urban settings, giving it a slightly rugged, yet refined edge.

Palette neighbours