#587DA7
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
0.195
Hue H
212°
Saturation S
31%
Lightness L
50%
Value V
65%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Blue
Contrast on white: 4.28:1 (AA body Fail / AAA Fail)
Contrast on black: 4.91:1 (AA body Pass / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#587da7
Protanopia
#68689d
Deuteranopia
#66639a
Tritanopia
#5a9593
Achromatopsia
#777777
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.