Colour
#31312F
- #31312F
- Near-black
- Dark
- Nearest: Dark slate grey
#31312F is a near-black with RGB values 49, 49, 47 and HSL 60°, 2%, 19%. It is a dark colour, so white text on it reaches 13:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#31312F#31312F
HEX#31312F
RGBrgb(49, 49, 47)
RGB (0–1)0.1922, 0.1922, 0.1843
RGB percentages19.2%, 19.2%, 18.4%
HSLhsl(60, 2.1%, 18.8%)
HSV / HSBhsv(60, 4.1%, 19.2%)
CMYK0%, 0%, 4.1%, 80.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,223,855
CSS custom property--colour: #31312F;
Brightness & contrast
Relative luminance0.03055WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.04:1
Contrast with white13.04:1WCAG normal text: AAA
Contrast with black1.61:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#CECED0
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.04:1WCAG large text: AAA
Contrast with black, large text1.61:1WCAG large text: Fail
Named colours
Hue familynear-black
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#2F2F31
Analogous#31302F, #30312F
Triadic#2F3131, #312F31
Split complementary#2F3031, #302F31
Tetradic#2F3130, #2F2F31, #312F30
Tints, shades & saturation
Channel breakdown
R49
G49
B47
Red49 (19.2%)
Green49 (19.2%)
Blue47 (18.4%)
Hue60°
Saturation (HSL)2.08%
Lightness18.82%
Dominant channelRed and Green
Hex per channelR 31 · G 31 · B 2F
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