Recognised as Decimal number
557
- Positive
- Decimal
- 0 d.p.
- Exact fraction
- 3 s.f.
557 is a decimal number equal to 557⁄1. It lies between 557 and 557, and as a percentage it is 55,700%.
Number properties
Fractions & ratios
Arithmetic
Representations
Decimal557
Scientific notation5.57 × 10^2
Exponential5.57e+2
IEEE 754 binary64 (hex)0x4081680000000000the exact 64-bit pattern stored
IEEE 754 binary32 (hex)0x440B400032-bit single precision, may lose accuracy
Rounding & precision
Significant figures as written3counted from the digits as typed, not from the value
To 0 decimal places557
To 1 decimal place557.0
To 2 decimal places557.00
To 3 decimal places557.000
To 4 decimal places557.0000
To 1 significant figure6e+2
To 2 significant figures5.6e+2
To 3 significant figures557
To 4 significant figures557.0
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Also reads as
#557E00 (colour)
- #557E00
- Green
- Dark
- Nearest: Olivedrab
#557E00 is a green with RGB values 85, 126, 0 and HSL 80°, 100%, 25%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Olivedrab.
Colour values
#557E00#557E00
HEX#557E00
RGBrgb(85, 126, 0)
RGB (0–1)0.3333, 0.4941, 0
RGB percentages33.3%, 49.4%, 0%
HSLhsl(79.5, 100%, 24.7%)
HSV / HSBhsv(79.5, 100%, 49.4%)
CMYK32.5%, 0%, 100%, 50.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,602,816
CSS custom property--colour: #557E00;
Brightness & contrast
Relative luminance0.16853WCAG 2.x, 0 is black and 1 is white
Perceived brightness107.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.8:1
Contrast with white4.8:1WCAG normal text: AA
Contrast with black4.37:1WCAG normal text: Fail
Greyscale equivalent#6C6C6C
Inverted#AA81FF
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.8:1WCAG large text: AAA
Contrast with black, large text4.37:1WCAG large text: AA
Named colours
Hue familygreen
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#29007E
Analogous#7E6800, #167E00
Triadic#00557E, #7E0055
Split complementary#00167E, #68007E
Tetradic#007E68, #29007E, #7E0016
Tints, shades & saturation
Channel breakdown
R85
G126
B0
Red85 (33.3%)
Green126 (49.4%)
Blue0 (0%)
Hue79.52°
Saturation (HSL)100%
Lightness24.71%
Dominant channelGreen
Hex per channelR 55 · G 7E · B 00
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Harmonies
Similar named colours
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