#8B0000
Approximate name: 深红
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.
近似色名
深红
相对亮度
0.055
色相 H
0°
饱和度 S
100%
明度 L
27%
色值 V
55%
色温
暖色
明暗
深
彩度
高彩度
色系
红
Contrast on white: 10.01:1 (AA body Pass / AAA Pass)
Contrast on black: 2.10:1 (AA body Fail / AAA Fail)
Open full contrast tool →Color blindness simulator
Approximate appearance under common color-vision deficiencies (matrix simulation).
Normal vision
#8b0000
红色盲 (Protanopia)
#4f4e00
绿色盲 (Deuteranopia)
#576100
蓝色盲 (Tritanopia)
#840000
全色盲 (Achromatopsia)
#2a2a2a
Creative pairings
Hue-wheel harmonies and 10% shade/tint steps — not AI-generated copy.