#3E4F3B
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
0.069
Hue H
111°
Saturation S
14%
Lightness L
27%
Value V
31%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Green
Contrast on white: 8.80:1 (AA body Pass / AAA Pass)
Contrast on black: 2.39:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#3e4f3b
Protanopia
#454640
Deuteranopia
#444341
Tritanopia
#3f4445
Achromatopsia
#484848
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.