Recognised as Colour
#B583C8
- #B583C8
- Violet
- Dark
- Nearest: Plum
#B583C8 is a violet with RGB values 181, 131, 200 and HSL 283°, 39%, 65%. It is a dark colour, so black text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Plum.
Colour values
#B583C8#B583C8
HEX#B583C8
RGBrgb(181, 131, 200)
RGB (0–1)0.7098, 0.5137, 0.7843
RGB percentages71%, 51.4%, 78.4%
HSLhsl(283.5, 38.5%, 64.9%)
HSV / HSBhsv(283.5, 34.5%, 78.4%)
CMYK9.5%, 34.5%, 0%, 21.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,895,752
CSS custom property--colour: #B583C8;
Brightness & contrast
Relative luminance0.30226WCAG 2.x, 0 is black and 1 is white
Perceived brightness156.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.05:1
Contrast with white2.98:1WCAG normal text: Fail
Contrast with black7.05:1WCAG normal text: AAA
Greyscale equivalent#939393
Inverted#4A7C37
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.98:1WCAG large text: Fail
Contrast with black, large text7.05:1WCAG large text: AAA
Named colours
Hue familyviolet
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#96C883
Analogous#9383C8, #C883B8
Triadic#C8B583, #83C8B5
Split complementary#B8C883, #83C893
Tetradic#C89383, #96C883, #83B8C8
Tints, shades & saturation
Channel breakdown
R181
G131
B200
Red181 (71%)
Green131 (51.4%)
Blue200 (78.4%)
Hue283.48°
Saturation (HSL)38.55%
Lightness64.9%
Dominant channelBlue
Hex per channelR B5 · G 83 · B C8
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Also reads as
B583C8 (chemical formula)
- Formula
- 6,398.318 g/mol
- 591 atoms
B583C8 has a molar mass of 6,398.318 g/mol, made up of 591 atoms across 2 elements: 583 × B, 8 × C.
Molar mass
Molar mass6,398.318 g/mol
Total atoms per molecule591
Distinct elements2
Mass of one molecule1.0624657 × 10^-20 g
Molecules per gram9.4120685 × 10^19
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
B98.5%
C1.5%
Boron (B × 583)6,302.23 g/mol, 98.498%
Carbon (C × 8)96.088 g/mol, 1.502%
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