#2187AB
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
0.206
Hue H
196°
Saturation S
68%
Lightness L
40%
Value V
67%
Temperature
Cool
Brightness
Dark
Chroma
Vivid
Hue family
Cyan
Contrast on white: 4.10:1 (AA body Fail / AAA Fail)
Contrast on black: 5.12:1 (AA body Pass / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#2187ab
Protanopia
#4d4ea2
Deuteranopia
#4740a0
Tritanopia
#269b9a
Achromatopsia
#6d6d6d
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.