Recognised as Colour
#BB31CA
- #BB31CA
- Magenta
- Dark
- Nearest: Dark orchid
#BB31CA is a magenta with RGB values 187, 49, 202 and HSL 294°, 61%, 49%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Dark orchid.
Colour values
#BB31CA#BB31CA
HEX#BB31CA
RGBrgb(187, 49, 202)
RGB (0–1)0.7333, 0.1922, 0.7922
RGB percentages73.3%, 19.2%, 79.2%
HSLhsl(294.1, 61%, 49.2%)
HSV / HSBhsv(294.1, 75.7%, 79.2%)
CMYK7.4%, 75.7%, 0%, 20.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,267,978
CSS custom property--colour: #BB31CA;
Brightness & contrast
Relative luminance0.17026WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.77:1
Contrast with white4.77:1WCAG normal text: AA
Contrast with black4.41:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#44CE35
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.77:1WCAG large text: AAA
Contrast with black, large text4.41:1WCAG large text: AA
Named colours
Hue familymagenta
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#40CA31
Analogous#6F31CA, #CA318C
Triadic#CABB31, #31CABB
Split complementary#8CCA31, #31CA6E
Tetradic#CA6F31, #40CA31, #318DCA
Tints, shades & saturation
Channel breakdown
R187
G49
B202
Red187 (73.3%)
Green49 (19.2%)
Blue202 (79.2%)
Hue294.12°
Saturation (HSL)60.96%
Lightness49.22%
Dominant channelBlue
Hex per channelR BB · G 31 · B CA
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Harmonies
Similar named colours
Also reads as
BB31Ca (chemical formula)
- Formula
- 385.998 g/mol
- 33 atoms
BB31Ca has a molar mass of 385.998 g/mol, made up of 33 atoms across 2 elements: 32 × B, 1 × Ca.
Molar mass
Molar mass385.998 g/mol
Total atoms per molecule33
Distinct elements2
Mass of one molecule6.4096476 × 10^-22 g
Molecules per gram1.5601482 × 10^21
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
B89.6%
Ca10.4%
Boron (B × 32)345.92 g/mol, 89.617%
Calcium (Ca)40.078 g/mol, 10.383%
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