Black Rock

#100B2F

General Information about #100B2F

The hex color #100B2F, also known as Black Rock, is a very dark shade of blue-purple. It belongs to the blue color family and is characterized by its low brightness and saturation. In the RGB color model, it is composed of 6.27% red, 4.31% green, and 18.43% blue. In the CMYK color model, used for printing, it consists of 66% cyan, 77% magenta, 0% yellow, and 82% black. Its dark nature makes it suitable for creating a sense of depth, sophistication, or mystery in design. Understanding its color properties helps designers use it effectively in various applications, such as web design, graphic design, and branding, ensuring it aligns with their desired aesthetic and message.

The hex color #100B2F, also known as Black Rock, presents significant accessibility challenges, particularly for users with visual impairments. Its low luminance value (very dark) means that it requires very light text or foreground elements to achieve sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for normal-sized text and 3:1 for large text (14pt bold or 18pt regular) against its background. When used for critical elements like links or buttons, this color demands careful consideration. It is crucial to test the color combination with accessibility evaluation tools to ensure compliance with accessibility standards. It is essential to select lighter colors in order to make this color combination accesible for a wide audience, especially individuals with low vision or color blindness.

Shades

Digital Color Formats

RGB
16 11 47
RGB16 11 47
Red
Green
Blue
HSL
248.33 62.07% 11.37%
248.3362.0711.37HSL
Hue
Saturation
Lightness
HWB
248.33 4.31% 81.57%
248.334.3181.57HWB
Hue
Whiteness
Blackness
hex#100B2F
rgb16 11 47
hsl248.33 62.07% 11.37%
cmyk65.96% 76.6% 0% 81.57%
hwb248.33 4.31% 81.57%
xyz-d650.01 0.01 0.03
oklch0.1834 0.0688 283.61
oklab0.1834 0.02 -0.07
CMYK
65.96% 76.6% 0% 81.57%
65.9676.6081.57CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0.01 0.01 0.03
0.010.010.03XYZ
X
Y
Z
OKLCH
0.1834 0.0688 283.61
0.18340.0688283.61LCH
Lightness
Chroma
Hue
OKLAB
0.1834 0.02 -0.07
0.18340.02-0.07LAB
Lightness
Green–Red
Blue–Yellow

Alternative colors

Applications

Complementary color

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