Decimal number
21,000
- Positive
- Decimal
- 0 d.p.
- Exact fraction
21,000 is a decimal number equal to 21,000⁄1. It lies between 21,000 and 21,000, and as a percentage it is 2,100,000%.
Number properties
Fractions & ratios
Arithmetic
Representations
Decimal21,000
Scientific notation2.1 × 10^4
Exponential2.1e+4
IEEE 754 binary64 (hex)0x40D4820000000000the exact 64-bit pattern stored
IEEE 754 binary32 (hex)0x46A4100032-bit single precision, may lose accuracy
Rounding
To 0 decimal places21000
To 1 decimal place21000.0
To 2 decimal places21000.00
To 3 decimal places21000.000
To 4 decimal places21000.0000
To 1 significant figure20000
To 2 significant figures21000
To 3 significant figures21000
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Also reads as
#210E02 (colour)
- #210E02
- Orange
- Dark
- Nearest: Black
#210E02 is a orange with RGB values 33, 14, 2 and HSL 23°, 89%, 7%. It is a dark colour, so white text on it reaches 18.6:1 contrast (AAA for normal text). The nearest named colour is Black.
Colour values
#210E02#210E02
HEX#210E02
RGBrgb(33, 14, 2)
RGB (0–1)0.1294, 0.0549, 0.0078
RGB percentages12.9%, 5.5%, 0.8%
HSLhsl(23.2, 88.6%, 6.9%)
HSV / HSBhsv(23.2, 93.9%, 12.9%)
CMYK0%, 57.6%, 93.9%, 87.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,166,274
CSS custom property--colour: #210E02;
Brightness & contrast
Relative luminance0.00642WCAG 2.x, 0 is black and 1 is white
Perceived brightness21 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.61:1
Contrast with white18.61:1WCAG normal text: AAA
Contrast with black1.13:1WCAG normal text: Fail
Greyscale equivalent#111111
Inverted#DEF1FD
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.61:1WCAG large text: AAA
Contrast with black, large text1.13:1WCAG large text: Fail
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#021521
Analogous#210205, #211E02
Triadic#02210E, #0E0221
Split complementary#02211E, #020521
Tetradic#052102, #021521, #1E0221
Tints, shades & saturation
Channel breakdown
R33
G14
B2
Red33 (12.9%)
Green14 (5.5%)
Blue2 (0.8%)
Hue23.23°
Saturation (HSL)88.57%
Lightness6.86%
Dominant channelRed
Hex per channelR 21 · G 0E · B 02
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