#511F2B
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
0.029
Hue H
346°
Saturation S
45%
Lightness L
22%
Value V
32%
Temperature
Warm
Brightness
Dark
Chroma
Muted
Hue family
Red
Contrast on white: 13.28:1 (AA body Pass / AAA Pass)
Contrast on black: 1.58:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#511f2b
Protanopia
#3b3b28
Deuteranopia
#3e4227
Tritanopia
#4f2625
Achromatopsia
#2f2f2f
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.