#0A0311
Approximate name: Black
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
Black
Relative luminance
0.002
Hue H
270°
Saturation S
70%
Lightness L
4%
Value V
7%
Temperature
Cool
Brightness
Dark
Chroma
Vivid
Hue family
Purple
Contrast on white: 20.31:1 (AA body Pass / AAA Pass)
Contrast on black: 1.03:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#0a0311
Protanopia
#07070e
Deuteranopia
#07080d
Tritanopia
#0a0b0a
Achromatopsia
#070707
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.