#174D3E
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
0.058
Hue H
163°
Saturation S
54%
Lightness L
20%
Value V
30%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Cyan
Contrast on white: 9.69:1 (AA body Pass / AAA Pass)
Contrast on black: 2.17:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#174d3e
Protanopia
#2e2f42
Deuteranopia
#2b2743
Tritanopia
#1a4445
Achromatopsia
#3b3b3b
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.