Blue Charcoal

#040617

General Information about #040617

The hex color code #040617 represents a very dark shade of blue, often referred to as Blue Charcoal. It is composed of 1.57% red, 2.35% green, and 9.02% blue. In the RGB color model, this translates to R:4, G:6, B:23. The corresponding CMYK values are C:83, M:74, Y:0, K:91. This color is generally perceived as subdued and somber, evoking feelings of tranquility and depth. Due to its low luminance, it is important to use this color carefully in design, especially regarding text and other elements that require good visibility. It belongs to the family of dark, cool colors, making it suitable for creating backgrounds or accentuating brighter elements.

The hex color #040617, also known as Blue Charcoal, presents significant accessibility challenges. Its extremely low luminance results in very poor contrast against both white and black text. According to WCAG guidelines, this color combination would fail all contrast ratio tests, making it difficult for users with visual impairments to read text or distinguish interface elements. To improve accessibility, consider using much lighter colors for text or interactive elements placed on a #040617 background. A contrast ratio of at least 4.5:1 for normal text and 3:1 for large text is recommended to meet WCAG AA standards. For AAA compliance, these ratios should be even higher. Tools like contrast checkers can help determine if a color combination meets accessibility requirements.

Shades

Digital Color Formats

RGB
4 6 23
RGB4 6 23
Red
Green
Blue
HSL
233.68deg 70.37% 5.29%
233.6870.375.29HSL
Hue
Saturation
Lightness
HWB
233.68deg 1.57% 90.98%
233.681.5790.98HWB
Hue
Whiteness
Blackness
hex#040617
rgb4 6 23
hsl233.68deg 70.37% 5.29%
cmyk82.61% 73.91% 0% 90.98%
hwb233.68deg 1.57% 90.98%
xyz-d650 0 0.01
oklch0.1319 0.0389 272.65
oklab0.1319 0 -0.04
CMYK
82.61% 73.91% 0% 90.98%
82.6173.91090.98CMYK
Cyan
Magenta
Yellow
Key
XYZ-d65
0 0 0.01
000.01XYZ
X
Y
Z
OKLCH
0.1319 0.0389 272.65
0.13190.0389272.65LCH
Lightness
Chroma
Hue
OKLAB
0.1319 0 -0.04
0.13190-0.04LAB
Lightness
Green-Red
Blue-Yellow

Alternative colors

Applications

Complementary color

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