#3D5D77
Approximate name: Dark Slate 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
DarkSlateBlue
Relative luminance
0.102
Hue H
207°
Saturation S
32%
Lightness L
35%
Value V
47%
Temperature
Cool
Brightness
Dark
Chroma
Muted
Hue family
Blue
Contrast on white: 6.93:1 (AA body Pass / AAA Fail)
Contrast on black: 3.03:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#3d5d77
Protanopia
#4b4b71
Deuteranopia
#49476f
Tritanopia
#3f6c6b
Achromatopsia
#565656
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.