#313D2E
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
0.042
Hue H
108°
Saturation S
14%
Lightness L
21%
Value V
24%
Temperature
Warm
Brightness
Dark
Chroma
Muted
Hue family
Green
Contrast on white: 11.43:1 (AA body Pass / AAA Pass)
Contrast on black: 1.84:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#313d2e
Protanopia
#363632
Deuteranopia
#363533
Tritanopia
#323435
Achromatopsia
#383838
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.