#0F3C4C
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
0.039
Hue H
196°
Saturation S
67%
Lightness L
18%
Value V
30%
Temperature
Cool
Brightness
Dark
Chroma
Vivid
Hue family
Cyan
Contrast on white: 11.86:1 (AA body Pass / AAA Pass)
Contrast on black: 1.77:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#0f3c4c
Protanopia
#222348
Deuteranopia
#201d47
Tritanopia
#114544
Achromatopsia
#303030
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.