#EF4A2A
Approximate name: Tomato
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
Tomato
Relative luminance
0.234
Hue H
10°
Saturation S
86%
Lightness L
55%
Value V
94%
Temperature
Warm
Brightness
Dark
Chroma
Vivid
Hue family
Red
Contrast on white: 3.70:1 (AA body Fail / AAA Fail)
Contrast on black: 5.68:1 (AA body Pass / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#ef4a2a
Protanopia
#a8a632
Deuteranopia
#b1bd34
Tritanopia
#e73839
Achromatopsia
#787878
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.