#993E3E
Approximate name: Sienna
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
Sienna
Relative luminance
0.106
Hue H
0°
Saturation S
42%
Lightness L
42%
Value V
60%
Temperature
Warm
Brightness
Dark
Chroma
Muted
Hue family
Red
Contrast on white: 6.75:1 (AA body Pass / AAA Fail)
Contrast on black: 3.11:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#993e3e
Protanopia
#72713e
Deuteranopia
#777e3e
Tritanopia
#943e3e
Achromatopsia
#595959
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.