Colour
#40312D
- #40312D
- Red
- Dark
- Nearest: Dark slate grey
#40312D is a red with RGB values 64, 49, 45 and HSL 13°, 17%, 21%. It is a dark colour, so white text on it reaches 12.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#40312D#40312D
HEX#40312D
RGBrgb(64, 49, 45)
RGB (0–1)0.251, 0.1922, 0.1765
RGB percentages25.1%, 19.2%, 17.6%
HSLhsl(12.6, 17.4%, 21.4%)
HSV / HSBhsv(12.6, 29.7%, 25.1%)
CMYK0%, 23.4%, 29.7%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,206,893
CSS custom property--colour: #40312D;
Brightness & contrast
Relative luminance0.03476WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.39:1
Contrast with white12.39:1WCAG normal text: AAA
Contrast with black1.7:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#BFCED2
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.39:1WCAG large text: AAA
Contrast with black, large text1.7:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#2D3C40
Analogous#402D33, #403B2D
Triadic#2D4031, #312D40
Split complementary#2D403B, #2D3340
Tetradic#33402D, #2D3C40, #3B2D40
Tints, shades & saturation
Channel breakdown
R64
G49
B45
Red64 (25.1%)
Green49 (19.2%)
Blue45 (17.6%)
Hue12.63°
Saturation (HSL)17.43%
Lightness21.37%
Dominant channelRed
Hex per channelR 40 · G 31 · B 2D
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