#323FCD
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
0.086
Hue H
235°
Saturation S
61%
Lightness L
50%
Value V
80%
Temperature
Cool
Brightness
Dark
Chroma
Vivid
Hue family
Blue
Contrast on white: 7.70:1 (AA body Pass / AAA Pass)
Contrast on black: 2.73:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#323fcd
Protanopia
#3838ab
Deuteranopia
#3736a2
Tritanopia
#338f8a
Achromatopsia
#4b4b4b
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.