Sepia Black

#310309

General Information about #310309

The hexadecimal color code #310309 represents a very dark shade of red. It is often referred to as "Sepia Black", even though it contains no black pigment. This color is composed of 19.2% red, 1.2% green, and 3.5% blue. In the RGB (Red, Green, Blue) color model, it is defined as (49, 3, 9). When converted to the CMYK (Cyan, Magenta, Yellow, Key/Black) color model, it becomes (0, 93, 82, 81). The low green and blue values contribute to its deep reddish-brown hue. This color sits close to the red end of the spectrum. Given its darkness and desaturated nature, it can evoke feelings of warmth and earthiness, reminiscent of aged materials.

The color #310309, also known as Sepia Black, presents significant accessibility challenges, especially in text-based applications. Its extremely low luminance (very dark shade) results in very poor contrast against typical light backgrounds (like white or light gray). This poor contrast makes it difficult for users with visual impairments, including those with low vision or color blindness, to read text or distinguish elements using this color. To ensure accessibility, it's crucial to avoid using #310309 for text or interactive elements on light backgrounds. If used, it must be paired with a very light color, such as white or a very pale yellow, to meet the WCAG (Web Content Accessibility Guidelines) contrast ratio requirements. Consider using color contrast tools to verify compliance. Avoid using this color as the sole indicator for important information; supplement it with text labels or icons for enhanced usability for all users.

Shades

Digital Color Formats

RGB
49 3 9
RGB49 3 9
Red
Green
Blue
HSL
352.17deg 88.46% 10.2%
352.1788.4610.2HSL
Hue
Saturation
Lightness
HWB
352.17deg 1.18% 80.78%
352.171.1880.78HWB
Hue
Whiteness
Blackness
hex#310309
rgb49 3 9
hsl352.17deg 88.46% 10.2%
cmyk0% 93.88% 81.63% 80.78%
hwb352.17deg 1.18% 80.78%
xyz-d650.01 0.01 0
oklch0.204 0.074 18.46
oklab0.204 0.07 0.02
CMYK
0% 93.88% 81.63% 80.78%
093.8881.6380.78CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0
0.010.010XYZ
X
Y
Z
OKLCH
0.204 0.074 18.46
0.2040.07418.46LCH
Lightness
Chroma
Hue
OKLAB
0.204 0.07 0.02
0.2040.070.02LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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