#4591BA
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
0.251
Hue H
201°
Saturation S
46%
Lightness L
50%
Value V
73%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Blue
Contrast on white: 3.49:1 (AA body Fail / AAA Fail)
Contrast on black: 6.01:1 (AA body Pass / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#4591ba
Protanopia
#6667b0
Deuteranopia
#625cae
Tritanopia
#49a8a7
Achromatopsia
#7f7f7f
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.