Recognised as Colour
#B583CC
- #B583CC
- Violet
- Dark
- Nearest: Plum
#B583CC is a violet with RGB values 181, 131, 204 and HSL 281°, 42%, 66%. It is a dark colour, so black text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Plum.
Colour values
#B583CC#B583CC
HEX#B583CC
RGBrgb(181, 131, 204)
RGB (0–1)0.7098, 0.5137, 0.8
RGB percentages71%, 51.4%, 80%
HSLhsl(281.1, 41.7%, 65.7%)
HSV / HSBhsv(281.1, 35.8%, 80%)
CMYK11.3%, 35.8%, 0%, 20%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,895,756
CSS custom property--colour: #B583CC;
Brightness & contrast
Relative luminance0.30416WCAG 2.x, 0 is black and 1 is white
Perceived brightness156.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.08:1
Contrast with white2.96:1WCAG normal text: Fail
Contrast with black7.08:1WCAG normal text: AAA
Greyscale equivalent#939393
Inverted#4A7C33
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.96:1WCAG large text: Fail
Contrast with black, large text7.08:1WCAG large text: AAA
Named colours
Hue familyviolet
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#9ACC83
Analogous#9083CC, #CC83BF
Triadic#CCB583, #83CCB5
Split complementary#BECC83, #83CC91
Tetradic#CC9183, #9ACC83, #83BFCC
Tints, shades & saturation
Channel breakdown
R181
G131
B204
Red181 (71%)
Green131 (51.4%)
Blue204 (80%)
Hue281.1°
Saturation (HSL)41.71%
Lightness65.69%
Dominant channelBlue
Hex per channelR B5 · G 83 · B CC
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Also reads as
B583CC (chemical formula)
- Formula
- 6,326.252 g/mol
- 585 atoms
B583CC has a molar mass of 6,326.252 g/mol, made up of 585 atoms across 2 elements: 583 × B, 2 × C.
Molar mass
Molar mass6,326.252 g/mol
Total atoms per molecule585
Distinct elements2
Mass of one molecule1.0504989 × 10^-20 g
Molecules per gram9.5192869 × 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
B99.6%
C0.4%
Boron (B × 583)6,302.23 g/mol, 99.62%
Carbon (C × 2)24.022 g/mol, 0.38%
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