#264AC0
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
0.091
Hue H
226°
Saturation S
67%
Lightness L
45%
Value V
75%
Temperature
Cool
Brightness
Dark
Chroma
Vivid
Hue family
Blue
Contrast on white: 7.44:1 (AA body Pass / AAA Pass)
Contrast on black: 2.82:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#264ac0
Protanopia
#3636a3
Deuteranopia
#34319d
Tritanopia
#288d88
Achromatopsia
#4d4d4d
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.