#4444BB
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
0.09
Hue H
240°
Saturation S
47%
Lightness L
50%
Value V
73%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Blue
Contrast on white: 7.53:1 (AA body Pass / AAA Pass)
Contrast on black: 2.79:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#4444bb
Protanopia
#44449e
Deuteranopia
#444497
Tritanopia
#448782
Achromatopsia
#525252
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.