#3E4E4B
Approximate name: Dark 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
DarkSlateGray
Relative luminance
0.07
Hue H
169°
Saturation S
11%
Lightness L
27%
Value V
31%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Cyan
Contrast on white: 8.76:1 (AA body Pass / AAA Pass)
Contrast on black: 2.40:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#3e4e4b
Protanopia
#45454c
Deuteranopia
#44434c
Tritanopia
#3f4c4c
Achromatopsia
#494949
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.