Recognised as Decimal number
650
- Positive
- Decimal
- 0 d.p.
- Exact fraction
- 3 s.f.
650 is a decimal number equal to 650⁄1. It lies between 650 and 650, and as a percentage it is 65,000%.
Number properties
Fractions & ratios
Arithmetic
Representations
Decimal650
Scientific notation6.5 × 10^2
Exponential6.5e+2
IEEE 754 binary64 (hex)0x4084500000000000the exact 64-bit pattern stored
IEEE 754 binary32 (hex)0x4422800032-bit single precision, may lose accuracy
Rounding & precision
Significant figures as written3counted from the digits as typed, not from the value
To 0 decimal places650
To 1 decimal place650.0
To 2 decimal places650.00
To 3 decimal places650.000
To 4 decimal places650.0000
To 1 significant figure7e+2
To 2 significant figures6.5e+2
To 3 significant figures650
To 4 significant figures650.0
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Also reads as
#650E00 (colour)
- #650E00
- Red
- Dark
- Nearest: Maroon
#650E00 is a red with RGB values 101, 14, 0 and HSL 8°, 100%, 20%. It is a dark colour, so white text on it reaches 13:1 contrast (AAA for normal text). The nearest named colour is Maroon.
Colour values
#650E00#650E00
HEX#650E00
RGBrgb(101, 14, 0)
RGB (0–1)0.3961, 0.0549, 0
RGB percentages39.6%, 5.5%, 0%
HSLhsl(8.3, 100%, 19.8%)
HSV / HSBhsv(8.3, 100%, 39.6%)
CMYK0%, 86.1%, 100%, 60.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,622,720
CSS custom property--colour: #650E00;
Brightness & contrast
Relative luminance0.03081WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.99:1
Contrast with white12.99:1WCAG normal text: AAA
Contrast with black1.62:1WCAG normal text: Fail
Greyscale equivalent#1F1F1F
Inverted#9AF1FF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.99:1WCAG large text: AAA
Contrast with black, large text1.62:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#005765
Analogous#650025, #654000
Triadic#00650E, #0E0065
Split complementary#006540, #002565
Tetradic#256500, #005765, #400065
Tints, shades & saturation
Channel breakdown
R101
G14
B0
Red101 (39.6%)
Green14 (5.5%)
Blue0 (0%)
Hue8.32°
Saturation (HSL)100%
Lightness19.8%
Dominant channelRed
Hex per channelR 65 · G 0E · B 00
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