#73737B
Approximate name: Gray
Technical formats
Color-space values for scientific work and cross-device comparison.
Practical formats
Ready to paste into CSS, Tailwind, iOS, Android, Flutter, and more.
Color analysis
Objective metrics: luminance, hue, saturation, temperature, and contrast.
Nearest name
Gray
Relative luminance
0.173
Hue H
240°
Saturation S
3%
Lightness L
47%
Value V
48%
Temperature
Neutral
Brightness
Dark
Chroma
Near gray
Hue family
Gray
Contrast on white: 4.70:1 (AA body Pass / AAA Fail)
Contrast on black: 4.47:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#73737b
Protanopia
#737379
Deuteranopia
#737379
Tritanopia
#737877
Achromatopsia
#747474
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.