#B33E00
Approximate name: Fire Brick
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
FireBrick
Relative luminance
0.13
Hue H
21°
Saturation S
100%
Lightness L
35%
Value V
70%
Temperature
Warm
Brightness
Dark
Chroma
Vivid
Hue family
Orange
Contrast on white: 5.82:1 (AA body Pass / AAA Fail)
Contrast on black: 3.61:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#b33e00
Protanopia
#807f0f
Deuteranopia
#879013
Tritanopia
#ad1b1d
Achromatopsia
#5a5a5a
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.