#312A1B
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
0.024
Hue H
41°
Saturation S
29%
Lightness L
15%
Value V
19%
Temperature
Warm
Brightness
Dark
Chroma
Muted
Hue family
Orange
Contrast on white: 14.21:1 (AA body Pass / AAA Pass)
Contrast on black: 1.48:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#312a1b
Protanopia
#2e2e1f
Deuteranopia
#2e2f20
Tritanopia
#312122
Achromatopsia
#2a2a2a
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.