Recognised as Colour
#B18BCB
- #B18BCB
- Violet
- Dark
- Nearest: Plum
#B18BCB is a violet with RGB values 177, 139, 203 and HSL 276°, 38%, 67%. It is a dark colour, so black text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Plum.
Colour values
#B18BCB#B18BCB
HEX#B18BCB
RGBrgb(177, 139, 203)
RGB (0–1)0.6941, 0.5451, 0.7961
RGB percentages69.4%, 54.5%, 79.6%
HSLhsl(275.6, 38.1%, 67.1%)
HSV / HSBhsv(275.6, 31.5%, 79.6%)
CMYK12.8%, 31.5%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,635,659
CSS custom property--colour: #B18BCB;
Brightness & contrast
Relative luminance0.32124WCAG 2.x, 0 is black and 1 is white
Perceived brightness159.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.42:1
Contrast with white2.83:1WCAG normal text: Fail
Contrast with black7.42:1WCAG normal text: AAA
Greyscale equivalent#989898
Inverted#4E7434
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.83:1WCAG large text: Fail
Contrast with black, large text7.42:1WCAG large text: AAA
Named colours
Hue familyviolet
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#A5CB8B
Analogous#918BCB, #CB8BC5
Triadic#CBB18B, #8BCBB1
Split complementary#C5CB8B, #8BCB91
Tetradic#CB918B, #A5CB8B, #8BC5CB
Tints, shades & saturation
Channel breakdown
R177
G139
B203
Red177 (69.4%)
Green139 (54.5%)
Blue203 (79.6%)
Hue275.63°
Saturation (HSL)38.1%
Lightness67.06%
Dominant channelBlue
Hex per channelR B1 · G 8B · B CB
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Harmonies
Similar named colours
Also reads as
B18BCB (chemical formula)
- Formula
- 228.211 g/mol
- 21 atoms
B18BCB has a molar mass of 228.211 g/mol, made up of 21 atoms across 2 elements: 20 × B, 1 × C.
Molar mass
Molar mass228.211 g/mol
Total atoms per molecule21
Distinct elements2
Mass of one molecule3.7895328 × 10^-22 g
Molecules per gram2.6388477 × 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
B94.7%
C5.3%
Boron (B × 20)216.2 g/mol, 94.737%
Carbon (C)12.011 g/mol, 5.263%
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