#300099
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
0.029
Hue H
259°
Saturation S
100%
Lightness L
30%
Value V
60%
Temperature
Cool
Brightness
Dark
Chroma
Vivid
Hue family
Purple
Contrast on white: 13.24:1 (AA body Pass / AAA Pass)
Contrast on black: 1.59:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#300099
Protanopia
#1b1b74
Deuteranopia
#1e226b
Tritanopia
#2e5750
Achromatopsia
#202020
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.