Recognised as Colour
#42423B
- #42423B
- Grey
- Dark
- Nearest: Dark slate grey
#42423B is a grey with RGB values 66, 66, 59 and HSL 60°, 6%, 25%. It is a dark colour, so white text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#42423B#42423B
HEX#42423B
RGBrgb(66, 66, 59)
RGB (0–1)0.2588, 0.2588, 0.2314
RGB percentages25.9%, 25.9%, 23.1%
HSLhsl(60, 5.6%, 24.5%)
HSV / HSBhsv(60, 10.6%, 25.9%)
CMYK0%, 0%, 10.6%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,342,331
CSS custom property--colour: #42423B;
Brightness & contrast
Relative luminance0.0537WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.12:1
Contrast with white10.12:1WCAG normal text: AAA
Contrast with black2.07:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#BDBDC4
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.12:1WCAG large text: AAA
Contrast with black, large text2.07:1WCAG large text: Fail
Named colours
Hue familygrey
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3B3B42
Analogous#423F3B, #3F423B
Triadic#3B4242, #423B42
Split complementary#3B3F42, #3F3B42
Tetradic#3B423F, #3B3B42, #423B3F
Tints, shades & saturation
Channel breakdown
R66
G66
B59
Red66 (25.9%)
Green66 (25.9%)
Blue59 (23.1%)
Hue60°
Saturation (HSL)5.6%
Lightness24.51%
Dominant channelRed and Green
Hex per channelR 42 · G 42 · B 3B
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