#2D39B9
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
0.07
Hue H
235°
Saturation S
61%
Lightness L
45%
Value V
73%
Temperature
Cool
Brightness
Dark
Chroma
Vivid
Hue family
Blue
Contrast on white: 8.76:1 (AA body Pass / AAA Pass)
Contrast on black: 2.40:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#2d39b9
Protanopia
#32329a
Deuteranopia
#323193
Tritanopia
#2e827c
Achromatopsia
#444444
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.