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Recognised as Dice notation

2d820

  • 2d820
  • 2 to 1640
  • mean 821
  • mode 821

Rolling 2d820 gives a total between 2 and 1,640, with a mean of 821 and a standard deviation of 334.7633. There are 672,400 equally likely ordered outcomes, and the most likely total is 821 at 0.122%.

The canonical address for this page is /2d820.

The roll

Notation2d820
Dice2
Faces per die820
Minimum total2all 2 dice showing 1
Maximum total1,640all 2 dice showing 820
Distinct totals1,639
Mean821n(f + 1)/2 + modifier, exact
Variance112,066.5n(f² − 1)/12, exact
Standard deviation334.76334925≈

Counting the outcomes

Ordered outcomes672,400820^2, every die distinguishable
Most likely total821
Chance of that total0.121951%≈
Ways to roll it820exact count
Chance of the minimum0.00014872%≈1 in 672,400
Chance of the maximum0.00014872%≈1 in 672,400

Shape of the distribution

1,639 distinct totals, too many to list individually.

1st percentile117≈1.009% of rolls are this or lower
5th percentile260≈5.007% of rolls are this or lower
25th percentile581≈25.058% of rolls are this or lower
50th percentile821≈50.061% of rolls are this or lower
75th percentile1,061≈75.028% of rolls are this or lower
95th percentile1,382≈95.031% of rolls are this or lower
99th percentile1,525≈99.008% of rolls are this or lower

Chance of rolling at least

16697.9878%≈
41287.4695%≈
82150.061%≈
1,23112.5305%≈
1,4762.0367%≈

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The same dice, different counts

The same count, different dice

Also reads as

#2D0820 (colour)

  • #2D0820
  • Magenta
  • Dark
  • Nearest: Black

#2D0820 is a magenta with RGB values 45, 8, 32 and HSL 321°, 70%, 10%. It is a dark colour, so white text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Black.

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Colour values

#2D0820#2D0820
HEX#2D0820
RGBrgb(45, 8, 32)
RGB (0–1)0.1765, 0.0314, 0.1255
RGB percentages17.6%, 3.1%, 12.5%
HSLhsl(321.1, 69.8%, 10.4%)
HSV / HSBhsv(321.1, 82.2%, 17.6%)
CMYK0%, 82.2%, 28.9%, 82.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,951,200
CSS custom property--colour: #2D0820;

Brightness & contrast

Relative luminance0.00836WCAG 2.x, 0 is black and 1 is white
Perceived brightness27.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.99:1
Contrast with white17.99:1WCAG normal text: AAA
Contrast with black1.17:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#D2F7DF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0C1321no red cones; affects about 1% of men; ΔE 20.8 from the original
Deuteranopia#17191Fno green cones; the most common form, about 1% of men; ΔE 21.3 from the original
Tritanopia#310812no blue cones; rare, and affects men and women equally; ΔE 10.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.99:1WCAG large text: AAA
Contrast with black, large text1.17:1WCAG large text: Fail

Named colours

Black · ΔE 24.2Dark slate grey · ΔE 41.3Dark slateblue · ΔE 42.5Dim grey · ΔE 43.4Midnight blue · ΔE 44.6Slate grey · ΔE 51.4
Nearest named CSS colourBlack (#000000)ΔE 24.16, a distinctly different colour
Hue familymagenta
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#082D15
Analogous#27082D, #2D080E
Triadic#202D08, #08202D
Split complementary#0D2D08, #082D27
Tetradic#2D2808, #082D15, #080E2D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D9289B
Lighter +30%#AF1F7C
Lighter +20%#84175E
Lighter +10%#58103F
Darker −10%#020001
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#340122
Less saturated −25%#260F1E

Channel breakdown

R45
G8
B32
Red45 (17.6%)
Green8 (3.1%)
Blue32 (12.5%)
Hue321.08°
Saturation (HSL)69.81%
Lightness10.39%
Dominant channelRed
Hex per channelR 2D · G 08 · B 20

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Every value on this page was computed from “2d0820” by Nerdulator’s games engine. Nothing here was retrieved from a database of answers or written by a model.