#B30900
Approximate name: Dark Red
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
DarkRed
Relative luminance
0.098
Hue H
3°
Saturation S
100%
Lightness L
35%
Value V
70%
Temperature
Warm
Brightness
Dark
Chroma
Vivid
Hue family
Red
Contrast on white: 7.10:1 (AA body Pass / AAA Pass)
Contrast on black: 2.96:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#b30900
Protanopia
#696802
Deuteranopia
#738003
Tritanopia
#aa0404
Achromatopsia
#3b3b3b
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.