#4E7E7E
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
0.18
Hue H
180°
Saturation S
24%
Lightness L
40%
Value V
49%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Cyan
Contrast on white: 4.56:1 (AA body Pass / AAA Fail)
Contrast on black: 4.61:1 (AA body Pass / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#4e7e7e
Protanopia
#63637e
Deuteranopia
#605c7e
Tritanopia
#507e7e
Achromatopsia
#707070
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.