#3F2D40
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
0.033
Hue H
297°
Saturation S
17%
Lightness L
21%
Value V
25%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Pink
Contrast on white: 12.64:1 (AA body Pass / AAA Pass)
Contrast on black: 1.66:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#3f2d40
Protanopia
#37373b
Deuteranopia
#383a3a
Tritanopia
#3e3837
Achromatopsia
#353535
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.