#D22D2D
Approximate name: Crimson
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
Crimson
Relative luminance
0.158
Hue H
0°
Saturation S
65%
Lightness L
50%
Value V
82%
Temperature
Warm
Brightness
Dark
Chroma
Vivid
Hue family
Red
Contrast on white: 5.06:1 (AA body Pass / AAA Fail)
Contrast on black: 4.15:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#d22d2d
Protanopia
#8b892d
Deuteranopia
#94a12d
Tritanopia
#ca2d2d
Achromatopsia
#5e5e5e
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.