#3974A7
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
0.162
Hue H
208°
Saturation S
49%
Lightness L
44%
Value V
65%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Blue
Contrast on white: 4.96:1 (AA body Pass / AAA Fail)
Contrast on black: 4.23:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#3974a7
Protanopia
#53539b
Deuteranopia
#4f4b98
Tritanopia
#3c918f
Achromatopsia
#686868
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.