#717C8A
Approximate name: 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
SlateGray
Relative luminance
0.198
Hue H
214°
Saturation S
10%
Lightness L
49%
Value V
54%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Blue
Contrast on white: 4.24:1 (AA body Fail / AAA Fail)
Contrast on black: 4.95:1 (AA body Pass / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#717c8a
Protanopia
#767687
Deuteranopia
#757486
Tritanopia
#728483
Achromatopsia
#7a7a7a
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.