Recognised as Colour
#B20743
- #B20743
- Red
- Dark
- Nearest: Brown
#B20743 is a red with RGB values 178, 7, 67 and HSL 339°, 92%, 36%. It is a dark colour, so white text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Brown.
Colour values
#B20743#B20743
HEX#B20743
RGBrgb(178, 7, 67)
RGB (0–1)0.698, 0.0275, 0.2627
RGB percentages69.8%, 2.7%, 26.3%
HSLhsl(338.9, 92.4%, 36.3%)
HSV / HSBhsv(338.9, 96.1%, 69.8%)
CMYK0%, 96.1%, 62.4%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,667,267
CSS custom property--colour: #B20743;
Brightness & contrast
Relative luminance0.10022WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.99:1
Contrast with white6.99:1WCAG normal text: AA
Contrast with black3:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#4DF8BC
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.99:1WCAG large text: AAA
Contrast with black, large text3:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#07B276
Analogous#B20799, #B22007
Triadic#43B207, #0743B2
Split complementary#07B220, #0799B2
Tetradic#99B207, #07B276, #2007B2
Tints, shades & saturation
Channel breakdown
R178
G7
B67
Red178 (69.8%)
Green7 (2.7%)
Blue67 (26.3%)
Hue338.95°
Saturation (HSL)92.43%
Lightness36.27%
Dominant channelRed
Hex per channelR B2 · G 07 · B 43
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Also reads as
B20743 (chemical formula)
- Formula
- 224,231.83 g/mol
- 20743 atoms
B20743 has a molar mass of 224,231.83 g/mol, made up of 20743 atoms across 1 element: 20743 × B.
Molar mass
Molar mass224,231.83 g/mol
Total atoms per molecule20743
Distinct elements1
Mass of one molecule3.7234571 × 10^-19 g
Molecules per gram2.6856761 × 10^18
Name
NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show
Composition by mass
B100%
Boron (B × 20743)224,231.83 g/mol, 100%
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