#2A3258
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
0.035
Hue H
230°
Saturation S
35%
Lightness L
25%
Value V
35%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Blue
Contrast on white: 12.38:1 (AA body Pass / AAA Pass)
Contrast on black: 1.70:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#2a3258
Protanopia
#2d2e4f
Deuteranopia
#2d2c4d
Tritanopia
#2a4846
Achromatopsia
#343434
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.