#5F55AA
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
0.118
Hue H
247°
Saturation S
33%
Lightness L
50%
Value V
67%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Blue
Contrast on white: 6.24:1 (AA body Pass / AAA Fail)
Contrast on black: 3.37:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#5f55aa
Protanopia
#5b5b95
Deuteranopia
#5b5c91
Tritanopia
#5f8582
Achromatopsia
#626262
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.