#4C7C8A
Approximate name: Slate 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
SlateGray
Relative luminance
0.178
Hue H
194°
Saturation S
29%
Lightness L
42%
Value V
54%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Cyan
Contrast on white: 4.61:1 (AA body Pass / AAA Fail)
Contrast on black: 4.56:1 (AA body Pass / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#4c7c8a
Protanopia
#616187
Deuteranopia
#5e5a86
Tritanopia
#4e8483
Achromatopsia
#6f6f6f
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.