#042B2F
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
0.02
Hue H
186°
Saturation S
84%
Lightness L
10%
Value V
18%
Temperature
Cool
Brightness
Dark
Chroma
Vivid
Hue family
Cyan
Contrast on white: 15.09:1 (AA body Pass / AAA Pass)
Contrast on black: 1.39:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#042b2f
Protanopia
#15152e
Deuteranopia
#13102e
Tritanopia
#062d2d
Achromatopsia
#202020
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.