#5B63C7
Approximate name: Slate Blue
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
SlateBlue
Relative luminance
0.153
Hue H
236°
Saturation S
49%
Lightness L
57%
Value V
78%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Blue
Contrast on white: 5.18:1 (AA body Pass / AAA Fail)
Contrast on black: 4.05:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#5b63c7
Protanopia
#5e5faf
Deuteranopia
#5e5da9
Tritanopia
#5b9c98
Achromatopsia
#6c6c6c
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.