#EA2E2E
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
0.196
Hue H
0°
Saturation S
82%
Lightness L
55%
Value V
92%
Temperature
Warm
Brightness
Dark
Chroma
Vivid
Hue family
Red
Contrast on white: 4.26:1 (AA body Fail / AAA Fail)
Contrast on black: 4.93:1 (AA body Pass / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#ea2e2e
Protanopia
#99972e
Deuteranopia
#a4b22e
Tritanopia
#e12e2e
Achromatopsia
#666666
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.