#2F664B
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
0.106
Hue H
151°
Saturation S
37%
Lightness L
29%
Value V
40%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Green
Contrast on white: 6.72:1 (AA body Pass / AAA Fail)
Contrast on black: 3.12:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#2f664b
Protanopia
#474752
Deuteranopia
#444053
Tritanopia
#325758
Achromatopsia
#525252
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.