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Recognised as Dice notation

21d688

  • 21d688
  • 21 to 14448
  • mean 7,234.5

Rolling 21d688 gives a total between 21 and 14,448, with a mean of 7,234.5 and a standard deviation of 910.1375. There are 388,469,747,180,214,668,878,734,428,724,891,334,729,453,345,844,275,695,321,088 equally likely ordered outcomes, and the most likely total is 7,234 or 7,235 at 0.044%.

The roll

Notation21d688
Dice21
Faces per die688
Minimum total21all 21 dice showing 1
Maximum total14,448all 21 dice showing 688
Distinct totals14,428
Mean7,234.5n(f + 1)/2 + modifier, exact
Variance828,350.25n(f² − 1)/12, exact
Standard deviation910.13748961≈

Counting the outcomes

Ordered outcomes388,469,747,180,214,668,878,734,428,724,891,334,729,453,345,844,275,695,321,088688^21, every die distinguishable
Most likely total7,234 and 7,235two totals share the peak
Chance of that total0.043519%≈
Ways to roll it169,058,055,393,951,990,547,243,460,340,302,510,326,408,521,705,872,338,944exact count
Chance of the minimum2.57420303 × 10^-58%≈1 in 388,469,747,180,214,668,878,734,428,724,891,334,729,453,345,844,275,695,321,088
Chance of the maximum2.57420303 × 10^-58%≈1 in 388,469,747,180,214,668,878,734,428,724,891,334,729,453,345,844,275,695,321,088

Shape of the distribution

14,428 distinct totals, too many to list individually.

1st percentile5,130≈1.003% of rolls are this or lower
5th percentile5,736≈5.001% of rolls are this or lower
25th percentile6,617≈25.022% of rolls are this or lower
50th percentile7,235≈50.044% of rolls are this or lower
75th percentile7,852≈75.012% of rolls are this or lower
95th percentile8,733≈95.01% of rolls are this or lower
99th percentile9,339≈99% of rolls are this or lower

Chance of rolling at least

1,464100%≈
3,62899.998%≈
7,23550%≈
10,8410.002%≈
13,0051.30634927 × 10^-11%≈

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The same dice, different counts

The same count, different dice

Also reads as

#21D688 (colour)

  • #21D688
  • Cyan
  • Light
  • Nearest: Medium spring green

#21D688 is a cyan with RGB values 33, 214, 136 and HSL 154°, 73%, 48%. It is a light colour, so black text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Medium spring green.

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Colour values

#21D688#21D688
HEX#21D688
RGBrgb(33, 214, 136)
RGB (0–1)0.1294, 0.8392, 0.5333
RGB percentages12.9%, 83.9%, 53.3%
HSLhsl(154.1, 73.3%, 48.4%)
HSV / HSBhsv(154.1, 84.6%, 83.9%)
CMYK84.6%, 0%, 36.4%, 16.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,217,608
CSS custom property--colour: #21D688;

Brightness & contrast

Relative luminance0.50194WCAG 2.x, 0 is black and 1 is white
Perceived brightness171.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 11.04:1
Contrast with white1.9:1WCAG normal text: Fail
Contrast with black11.04:1WCAG normal text: AAA
Greyscale equivalent#AAAAAA
Inverted#DE2977

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#D4C483no red cones; affects about 1% of men; ΔE 57.3 from the original
Deuteranopia#C0B68Dno green cones; the most common form, about 1% of men; ΔE 57.6 from the original
Tritanopia#00D4C2no blue cones; rare, and affects men and women equally; ΔE 32.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.9:1WCAG large text: Fail
Contrast with black, large text11.04:1WCAG large text: AAA

Named colours

Medium spring green · ΔE 16.3Medium seagreen · ΔE 16.5Light green · ΔE 20.2Pale green · ΔE 22.2Aquamarine · ΔE 27.6Medium aquamarine · ΔE 28.7
Nearest named CSS colourMedium spring green (#00FA9A)ΔE 16.27, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D6216F
Analogous#21D62E, #21C9D6
Triadic#8821D6, #D68821
Split complementary#D621CA, #D62E21
Tetradic#2D21D6, #D6216F, #C9D621

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CCF7E4
Lighter +30%#A0F0CE
Lighter +20%#74E9B7
Lighter +10%#47E3A0
Darker −10%#1AAA6C
Darker −20%#137E50
Darker −30%#0D5134
Darker −40%#062518
More saturated +25%#02F58C
Less saturated −25%#40B784

Channel breakdown

R33
G214
B136
Red33 (12.9%)
Green214 (83.9%)
Blue136 (53.3%)
Hue154.14°
Saturation (HSL)73.28%
Lightness48.43%
Dominant channelGreen
Hex per channelR 21 · G D6 · B 88

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Every value on this page was computed from “21d688” by Nerdulator’s games engine. Nothing here was retrieved from a database of answers or written by a model.