#4277BD
Approximate name: Steel 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
SteelBlue
Relative luminance
0.18
Hue H
214°
Saturation S
48%
Lightness L
50%
Value V
74%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Blue
Contrast on white: 4.56:1 (AA body Pass / AAA Fail)
Contrast on black: 4.61:1 (AA body Pass / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#4277bd
Protanopia
#5959ac
Deuteranopia
#5652a8
Tritanopia
#459f9c
Achromatopsia
#6f6f6f
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.