#18232F
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
0.016
Hue H
211°
Saturation S
32%
Lightness L
14%
Value V
18%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Blue
Contrast on white: 15.91:1 (AA body Pass / AAA Pass)
Contrast on black: 1.32:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#18232f
Protanopia
#1d1d2c
Deuteranopia
#1c1b2b
Tritanopia
#192a29
Achromatopsia
#212121
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.