#1B72E4
Approximate name: Royal 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
RoyalBlue
Relative luminance
0.179
Hue H
214°
Saturation S
79%
Lightness L
50%
Value V
89%
Temperature
Cool
Brightness
Dark
Chroma
Vivid
Hue family
Blue
Contrast on white: 4.59:1 (AA body Pass / AAA Fail)
Contrast on black: 4.57:1 (AA body Pass / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#1b72e4
Protanopia
#4141c8
Deuteranopia
#3c35c2
Tritanopia
#1fb3ae
Achromatopsia
#656565
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.