#404547
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
0.058
Hue H
197°
Saturation S
5%
Lightness L
26%
Value V
28%
Temperature
Neutral
Brightness
Dark
Chroma
Near gray
Hue family
Gray
Contrast on white: 9.72:1 (AA body Pass / AAA Pass)
Contrast on black: 2.16:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#404547
Protanopia
#424247
Deuteranopia
#424246
Tritanopia
#404646
Achromatopsia
#444444
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.