Sepia Black

#310B03

About Sepia Black

The hex color #310B03, often referred to as Sepia Black, is a very dark shade of brown with a strong bias towards the red spectrum. It falls into the category of tertiary colors, resulting from mixing a primary color with a secondary color. In the RGB color model, its components are approximately 19.22% red, 4.31% green, and 1.18% blue. This color is perceived as warm and earthy, often associated with vintage aesthetics, antiques, and a sense of history. Due to its very low luminance, Sepia Black closely resembles black and shares many of its characteristics. However, the subtle brown undertones contribute a unique character that differentiates it from pure black. Its darkness makes it suitable for creating depth and shadows in visual designs.

The hex color #310B03, also known as Sepia Black, presents significant accessibility challenges, especially in text applications. Its extremely low luminance value creates very poor contrast against almost any background color, including white. This makes it exceedingly difficult for users with visual impairments, such as those with low vision or color blindness, to read text rendered in this color. Web Content Accessibility Guidelines (WCAG) emphasize a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Sepia Black will almost certainly fail these contrast tests against light backgrounds. To ensure accessibility, it's strongly advised to avoid using #310B03 for text or interactive elements unless paired with a very light background or used in purely decorative ways where readability is not a factor. Careful consideration and testing with accessibility evaluation tools are crucial when incorporating this color into designs.

Shades

Digital Color Formats

RGB
49 11 3
RGB49 11 3
Red
Green
Blue
HSL
10.43deg 88.46% 10.2%
10.4388.4610.2HSL
Hue
Saturation
Lightness
HWB
10.43deg 1.18% 80.78%
10.431.1880.78HWB
Hue
Whiteness
Blackness
hex#310B03
rgb49 11 3
hsl10.43deg 88.46% 10.2%
cmyk0% 77.55% 93.88% 80.78%
hwb10.43deg 1.18% 80.78%
xyz-d650.01 0.01 0
oklch0.215 0.0644 35.78
oklab0.215 0.05 0.04
CMYK
0% 77.55% 93.88% 80.78%
077.5593.8880.78CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0
0.010.010XYZ
X
Y
Z
OKLCH
0.215 0.0644 35.78
0.2150.064435.78LCH
Lightness
Chroma
Hue
OKLAB
0.215 0.05 0.04
0.2150.050.04LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

Buttons