Recognised as Colour
#B51971
- #B51971
- Magenta
- Dark
- Nearest: Medium violet red
#B51971 is a magenta with RGB values 181, 25, 113 and HSL 326°, 76%, 40%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Medium violet red.
Colour values
#B51971#B51971
HEX#B51971
RGBrgb(181, 25, 113)
RGB (0–1)0.7098, 0.098, 0.4431
RGB percentages71%, 9.8%, 44.3%
HSLhsl(326.2, 75.7%, 40.4%)
HSV / HSBhsv(326.2, 86.2%, 71%)
CMYK0%, 86.2%, 37.6%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,868,529
CSS custom property--colour: #B51971;
Brightness & contrast
Relative luminance0.11711WCAG 2.x, 0 is black and 1 is white
Perceived brightness107.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.28:1
Contrast with white6.28:1WCAG normal text: AA
Contrast with black3.34:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#4AE68E
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.28:1WCAG large text: AAA
Contrast with black, large text3.34:1WCAG large text: AA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#19B55D
Analogous#AB19B5, #B51923
Triadic#71B519, #1971B5
Split complementary#23B519, #19B5AB
Tetradic#B5AB19, #19B55D, #1923B5
Tints, shades & saturation
Channel breakdown
R181
G25
B113
Red181 (71%)
Green25 (9.8%)
Blue113 (44.3%)
Hue326.15°
Saturation (HSL)75.73%
Lightness40.39%
Dominant channelRed
Hex per channelR B5 · G 19 · B 71
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Harmonies
Similar named colours
Also reads as
B51971 (chemical formula)
- Formula
- 561,806.51 g/mol
- 51971 atoms
B51971 has a molar mass of 561,806.51 g/mol, made up of 51971 atoms across 1 element: 51971 × B.
Molar mass
Molar mass561,806.51 g/mol
Total atoms per molecule51971
Distinct elements1
Mass of one molecule9.3290166 × 10^-19 g
Molecules per gram1.0719243 × 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 × 51971)561,806.51 g/mol, 100%
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