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Dice notation

22d30

  • 22d30
  • 22 to 660
  • mean 341
  • mode 341

Rolling 22d30 gives a total between 22 and 660, with a mean of 341 and a standard deviation of 40.5976. There are 313,810,596,090,000,000,000,000,000,000,000 equally likely ordered outcomes, and the most likely total is 341 at 0.976%.

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The roll

Notation22d30
Dice22
Faces per die30
Minimum total22all 22 dice showing 1
Maximum total660all 22 dice showing 30
Distinct totals639
Mean341n(f + 1)/2 + modifier, exact
Variance1,648.16666667n(f² − 1)/12, exact
Standard deviation40.59761898≈

Counting the outcomes

Ordered outcomes313,810,596,090,000,000,000,000,000,000,00030^22, every die distinguishable
Most likely total341
Chance of that total0.975937%≈
Ways to roll it3,062,592,527,935,422,307,874,202,623,400exact count
Chance of the minimum3.18663555 × 10^-31%≈1 in 313,810,596,090,000,000,000,000,000,000,000
Chance of the maximum3.18663555 × 10^-31%≈1 in 313,810,596,090,000,000,000,000,000,000,000

Shape of the distribution

639 distinct totals, too many to list individually.

1st percentile247≈1.028% of rolls are this or lower
5th percentile274≈5.083% of rolls are this or lower
25th percentile313≈25.033% of rolls are this or lower
50th percentile341≈50.488% of rolls are this or lower
75th percentile369≈75.741% of rolls are this or lower
95th percentile408≈95.172% of rolls are this or lower
99th percentile435≈99.039% of rolls are this or lower

Chance of rolling at least

86100%≈
18299.9975%≈
34150.488%≈
5010.0025%≈
5965.41165034 × 10^-11%≈

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The same dice, different counts

The same count, different dice

Also reads as

#022D30 (colour)

  • #022D30
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#022D30 is a cyan with RGB values 2, 45, 48 and HSL 184°, 92%, 10%. It is a dark colour, so white text on it reaches 14.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

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Colour values

#022D30#022D30
HEX#022D30
RGBrgb(2, 45, 48)
RGB (0–1)0.0078, 0.1765, 0.1882
RGB percentages0.8%, 17.6%, 18.8%
HSLhsl(183.9, 92%, 9.8%)
HSV / HSBhsv(183.9, 95.8%, 18.8%)
CMYK95.8%, 6.2%, 0%, 81.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer142,640
CSS custom property--colour: #022D30;

Brightness & contrast

Relative luminance0.02103WCAG 2.x, 0 is black and 1 is white
Perceived brightness38.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.78:1
Contrast with white14.78:1WCAG normal text: AAA
Contrast with black1.42:1WCAG normal text: Fail
Greyscale equivalent#242424
Inverted#FDD2CF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#282A30no red cones; affects about 1% of men; ΔE 13.5 from the original
Deuteranopia#222630no green cones; the most common form, about 1% of men; ΔE 13.8 from the original
Tritanopia#002F2Eno blue cones; rare, and affects men and women equally; ΔE 3.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.78:1WCAG large text: AAA
Contrast with black, large text1.42:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.4Black · ΔE 21.3Dim grey · ΔE 31.7Teal · ΔE 36.1Slate grey · ΔE 38.6Gray · ΔE 40.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.44, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#300502
Analogous#02301C, #021630
Triadic#30022D, #2D3002
Split complementary#300216, #301C02
Tetradic#1C0230, #300502, #163002

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#0AE5F4
Lighter +30%#08B7C3
Lighter +20%#068992
Lighter +10%#045B61
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002F32
Less saturated −25%#08282A

Channel breakdown

R2
G45
B48
Red2 (0.8%)
Green45 (17.6%)
Blue48 (18.8%)
Hue183.91°
Saturation (HSL)92%
Lightness9.8%
Dominant channelBlue
Hex per channelR 02 · G 2D · B 30

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