#303129
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
0.03
Hue H
68°
Saturation S
9%
Lightness L
18%
Value V
19%
Temperature
Neutral
Brightness
Dark
Chroma
Near gray
Hue family
Yellow
Contrast on white: 13.15:1 (AA body Pass / AAA Pass)
Contrast on black: 1.60:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#303129
Protanopia
#30302b
Deuteranopia
#30302b
Tritanopia
#302c2d
Achromatopsia
#303030
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.