#5A00A3
Approximate name: Indigo
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
Indigo
Relative luminance
0.048
Hue H
273°
Saturation S
100%
Lightness L
32%
Value V
64%
Temperature
Cool
Brightness
Dark
Chroma
Vivid
Hue family
Purple
Contrast on white: 10.69:1 (AA body Pass / AAA Pass)
Contrast on black: 1.96:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#5a00a3
Protanopia
#33327c
Deuteranopia
#383f72
Tritanopia
#565c56
Achromatopsia
#2d2d2d
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.