#5C859E
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
0.215
Hue H
203°
Saturation S
26%
Lightness L
49%
Value V
62%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Blue
Contrast on white: 3.96:1 (AA body Fail / AAA Fail)
Contrast on black: 5.30:1 (AA body Pass / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#5c859e
Protanopia
#6e6e98
Deuteranopia
#6b6897
Tritanopia
#5e9392
Achromatopsia
#7c7c7c
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.