Recognised as Decimal number
80
- Positive
- Decimal
- 0 d.p.
- Exact fraction
- 2 s.f.
80 is a decimal number equal to 80⁄1. It lies between 80 and 80, and as a percentage it is 8,000%.
Number properties
Fractions & ratios
Arithmetic
Representations
Decimal80
Scientific notation8 × 10^1
Exponential8e+1
IEEE 754 binary64 (hex)0x4054000000000000the exact 64-bit pattern stored
IEEE 754 binary32 (hex)0x42A0000032-bit single precision, may lose accuracy
Rounding & precision
Significant figures as written2counted from the digits as typed, not from the value
To 0 decimal places80
To 1 decimal place80.0
To 2 decimal places80.00
To 3 decimal places80.000
To 4 decimal places80.0000
To 1 significant figure8e+1
To 2 significant figures80
To 3 significant figures80.0
To 4 significant figures80.00
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Also reads as
#80E000 (colour)
- #80E000
- Green
- Light
- Nearest: Green yellow
#80E000 is a green with RGB values 128, 224, 0 and HSL 86°, 100%, 44%. It is a light colour, so black text on it reaches 12.6:1 contrast (AAA for normal text). The nearest named colour is Green yellow.
Colour values
#80E000#80E000
HEX#80E000
RGBrgb(128, 224, 0)
RGB (0–1)0.502, 0.8784, 0
RGB percentages50.2%, 87.8%, 0%
HSLhsl(85.7, 100%, 43.9%)
HSV / HSBhsv(85.7, 100%, 87.8%)
CMYK42.9%, 0%, 100%, 12.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,445,952
CSS custom property--colour: #80E000;
Brightness & contrast
Relative luminance0.57901WCAG 2.x, 0 is black and 1 is white
Perceived brightness185.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 12.58:1
Contrast with white1.67:1WCAG normal text: Fail
Contrast with black12.58:1WCAG normal text: AAA
Greyscale equivalent#BBBBBB
Inverted#7F1FFF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.67:1WCAG large text: Fail
Contrast with black, large text12.58:1WCAG large text: AAA
Named colours
Hue familygreen
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#6000E0
Analogous#E0D000, #10E000
Triadic#0080E0, #E00080
Split complementary#0010E0, #D000E0
Tetradic#00E0D0, #6000E0, #E00010
Tints, shades & saturation
Channel breakdown
R128
G224
B0
Red128 (50.2%)
Green224 (87.8%)
Blue0 (0%)
Hue85.71°
Saturation (HSL)100%
Lightness43.92%
Dominant channelGreen
Hex per channelR 80 · G E0 · B 00
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Harmonies
Similar named colours
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