#181D4E
Approximate name: Midnight 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
MidnightBlue
Relative luminance
0.016
Hue H
234°
Saturation S
53%
Lightness L
20%
Value V
31%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Blue
Contrast on white: 15.85:1 (AA body Pass / AAA Pass)
Contrast on black: 1.32:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#181d4e
Protanopia
#1a1a42
Deuteranopia
#1a193f
Tritanopia
#183937
Achromatopsia
#212121
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.