Colour
#ACAAA4
- #ACAAA4
- Grey
- Dark
- Nearest: Dark grey
#ACAAA4 is a grey with RGB values 172, 170, 164 and HSL 45°, 5%, 66%. It is a dark colour, so black text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Dark grey.
Colour values
#ACAAA4#ACAAA4
HEX#ACAAA4
RGBrgb(172, 170, 164)
RGB (0–1)0.6745, 0.6667, 0.6431
RGB percentages67.5%, 66.7%, 64.3%
HSLhsl(45, 4.6%, 65.9%)
HSV / HSBhsv(45, 4.7%, 67.5%)
CMYK0%, 1.2%, 4.7%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,315,876
CSS custom property--colour: #ACAAA4;
Brightness & contrast
Relative luminance0.402WCAG 2.x, 0 is black and 1 is white
Perceived brightness169.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.04:1
Contrast with white2.32:1WCAG normal text: Fail
Contrast with black9.04:1WCAG normal text: AAA
Greyscale equivalent#AAAAAA
Inverted#53555B
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.32:1WCAG large text: Fail
Contrast with black, large text9.04:1WCAG large text: AAA
Named colours
Hue familygrey
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#A4A6AC
Analogous#ACA6A4, #AAACA4
Triadic#A4ACAA, #AAA4AC
Split complementary#A4AAAC, #A6A4AC
Tetradic#A4ACA6, #A4A6AC, #ACA4AA
Tints, shades & saturation
Channel breakdown
R172
G170
B164
Red172 (67.5%)
Green170 (66.7%)
Blue164 (64.3%)
Hue45°
Saturation (HSL)4.6%
Lightness65.88%
Dominant channelRed
Hex per channelR AC · G AA · B A4
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