#858D91
Approximate name: Light 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
LightSlateGray
Relative luminance
0.261
Hue H
200°
Saturation S
5%
Lightness L
55%
Value V
57%
Temperature
Neutral
Brightness
Dark
Chroma
Near gray
Hue family
Gray
Contrast on white: 3.38:1 (AA body Fail / AAA Fail)
Contrast on black: 6.22:1 (AA body Pass / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#858d91
Protanopia
#888990
Deuteranopia
#888790
Tritanopia
#858f8f
Achromatopsia
#8b8b8b
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.