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Recognised as Dice notation

30d18

  • 30d18
  • 30 to 540
  • mean 285
  • mode 285

Rolling 30d18 gives a total between 30 and 540, with a mean of 285 and a standard deviation of 28.4165. There are 45,517,159,607,903,340,355,793,714,778,287,898,624 equally likely ordered outcomes, and the most likely total is 285 at 1.397%.

The canonical address for this page is /30d18.

The roll

Notation30d18
Dice30
Faces per die18
Minimum total30all 30 dice showing 1
Maximum total540all 30 dice showing 18
Distinct totals511
Mean285n(f + 1)/2 + modifier, exact
Variance807.5n(f² − 1)/12, exact
Standard deviation28.41654448≈

Counting the outcomes

Ordered outcomes45,517,159,607,903,340,355,793,714,778,287,898,62418^30, every die distinguishable
Most likely total285
Chance of that total1.396828%≈
Ways to roll it635,796,573,321,719,166,777,803,429,680,019,024exact count
Chance of the minimum2.19697364 × 10^-36%≈1 in 45,517,159,607,903,340,355,793,714,778,287,898,624
Chance of the maximum2.19697364 × 10^-36%≈1 in 45,517,159,607,903,340,355,793,714,778,287,898,624

Shape of the distribution

511 distinct totals, too many to list individually.

1st percentile219≈1.032% of rolls are this or lower
5th percentile238≈5.097% of rolls are this or lower
25th percentile266≈25.842% of rolls are this or lower
50th percentile285≈50.698% of rolls are this or lower
75th percentile304≈75.28% of rolls are this or lower
95th percentile332≈95.264% of rolls are this or lower
99th percentile351≈99.062% of rolls are this or lower

Chance of rolling at least

81100%≈
15899.9998%≈
28550.6984%≈
4130.0002%≈
4893.08983852 × 10^-14%≈

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The same dice, different counts

The same count, different dice

Also reads as

#030D18 (colour)

  • #030D18
  • Blue
  • Dark
  • Nearest: Black

#030D18 is a blue with RGB values 3, 13, 24 and HSL 211°, 78%, 5%. It is a dark colour, so white text on it reaches 19.5:1 contrast (AAA for normal text). The nearest named colour is Black.

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Colour values

#030D18#030D18
HEX#030D18
RGBrgb(3, 13, 24)
RGB (0–1)0.0118, 0.051, 0.0941
RGB percentages1.2%, 5.1%, 9.4%
HSLhsl(211.4, 77.8%, 5.3%)
HSV / HSBhsv(211.4, 87.5%, 9.4%)
CMYK87.5%, 45.8%, 0%, 90.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer199,960
CSS custom property--colour: #030D18;

Brightness & contrast

Relative luminance0.00373WCAG 2.x, 0 is black and 1 is white
Perceived brightness12.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.54:1
Contrast with white19.54:1WCAG normal text: AAA
Contrast with black1.07:1WCAG normal text: Fail
Greyscale equivalent#0C0C0C
Inverted#FCF2E7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#080D18no red cones; affects about 1% of men; ΔE 1.4 from the original
Deuteranopia#060B18no green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#001011no blue cones; rare, and affects men and women equally; ΔE 6.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.54:1WCAG large text: AAA
Contrast with black, large text1.07:1WCAG large text: Fail

Named colours

Black · ΔE 8.1Dark slate grey · ΔE 30.3Dim grey · ΔE 41.7Slate grey · ΔE 49.6Gray · ΔE 50.7Dark slateblue · ΔE 51.6
Nearest named CSS colourBlack (#000000)ΔE 8.06, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#180E03
Analogous#031718, #030318
Triadic#18030D, #0D1803
Split complementary#180403, #171803
Tetradic#180318, #180E03, #031804

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1A6FCD
Lighter +30%#1457A0
Lighter +20%#0E3E73
Lighter +10%#092645
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000D1B
Less saturated −25%#060D15

Channel breakdown

R3
G13
B24
Red3 (1.2%)
Green13 (5.1%)
Blue24 (9.4%)
Hue211.43°
Saturation (HSL)77.78%
Lightness5.29%
Dominant channelBlue
Hex per channelR 03 · G 0D · B 18

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Every value on this page was computed from “030d18” by Nerdulator’s games engine. Nothing here was retrieved from a database of answers or written by a model.