Dice notation
2d13
- 2d13
- 2 to 26
- mean 14
- mode 14
Rolling 2d13 gives a total between 2 and 26, with a mean of 14 and a standard deviation of 5.2915. There are 169 equally likely ordered outcomes, and the most likely total is 14 at 7.692%.
The canonical address for this page is /2d13.
The roll
Notation2d13
Dice2
Faces per die13
Minimum total2all 2 dice showing 1
Maximum total26all 2 dice showing 13
Distinct totals25
Mean14n(f + 1)/2 + modifier, exact
Variance28n(f² − 1)/12, exact
Standard deviation5.29150262≈
Counting the outcomes
Ordered outcomes16913^2, every die distinguishable
Most likely total14
Chance of that total7.692308%≈
Ways to roll it13exact count
Chance of the minimum0.59171598%≈1 in 169
Chance of the maximum0.59171598%≈1 in 169
Probability of each total
Exact counts, by enumeration over every combination.
20.59%
31.18%
41.78%
52.37%
62.96%
73.55%
84.14%
94.73%
105.33%
115.92%
126.51%
137.1%
147.69%
157.1%
166.51%
175.92%
185.33%
194.73%
204.14%
213.55%
222.96%
232.37%
241.78%
251.18%
260.59%
20.5917%1 way
31.1834%2 ways
41.7751%3 ways
52.3669%4 ways
62.9586%5 ways
73.5503%6 ways
84.142%7 ways
94.7337%8 ways
105.3254%9 ways
115.9172%10 ways
126.5089%11 ways
137.1006%12 ways
147.6923%13 ways
157.1006%12 ways
166.5089%11 ways
175.9172%10 ways
185.3254%9 ways
194.7337%8 ways
204.142%7 ways
213.5503%6 ways
222.9586%5 ways
232.3669%4 ways
241.7751%3 ways
251.1834%2 ways
260.5917%1 way
Chance of rolling at least
498.2249%≈
887.574%≈
1453.8462%≈
2016.568%≈
243.5503%≈
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Also reads as
#2D0013 (colour)
- #2D0013
- Red
- Dark
- Nearest: Black
#2D0013 is a red with RGB values 45, 0, 19 and HSL 335°, 100%, 9%. It is a dark colour, so white text on it reaches 18.7:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#2D0013#2D0013
HEX#2D0013
RGBrgb(45, 0, 19)
RGB (0–1)0.1765, 0, 0.0745
RGB percentages17.6%, 0%, 7.5%
HSLhsl(334.7, 100%, 8.8%)
HSV / HSBhsv(334.7, 100%, 17.6%)
CMYK0%, 100%, 57.8%, 82.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,949,139
CSS custom property--colour: #2D0013;
Brightness & contrast
Relative luminance0.00605WCAG 2.x, 0 is black and 1 is white
Perceived brightness25.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.73:1
Contrast with white18.73:1WCAG normal text: AAA
Contrast with black1.12:1WCAG normal text: Fail
Greyscale equivalent#0B0B0B
Inverted#D2FFEC
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.73:1WCAG large text: AAA
Contrast with black, large text1.12:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#002D1A
Analogous#2D0029, #2D0400
Triadic#132D00, #00132D
Split complementary#002D04, #00292D
Tetradic#292D00, #002D1A, #04002D
Tints, shades & saturation
Channel breakdown
R45
G0
B19
Red45 (17.6%)
Green0 (0%)
Blue19 (7.5%)
Hue334.67°
Saturation (HSL)100%
Lightness8.82%
Dominant channelRed
Hex per channelR 2D · G 00 · B 13
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Harmonies
Similar named colours
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