#D50032
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
0.144
Hue H
346°
Saturation S
100%
Lightness L
42%
Value V
84%
Temperature
Warm
Brightness
Dark
Chroma
Vivid
Hue family
Red
Contrast on white: 5.42:1 (AA body Pass / AAA Fail)
Contrast on black: 3.88:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#d50032
Protanopia
#797726
Deuteranopia
#859523
Tritanopia
#ca1c1a
Achromatopsia
#454545
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.