Recognised as Colour
#B575DB
- #B575DB
- Violet
- Dark
- Nearest: Medium purple
#B575DB is a violet with RGB values 181, 117, 219 and HSL 278°, 59%, 66%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Medium purple.
Colour values
#B575DB#B575DB
HEX#B575DB
RGBrgb(181, 117, 219)
RGB (0–1)0.7098, 0.4588, 0.8588
RGB percentages71%, 45.9%, 85.9%
HSLhsl(277.6, 58.6%, 65.9%)
HSV / HSBhsv(277.6, 46.6%, 85.9%)
CMYK17.4%, 46.6%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,892,187
CSS custom property--colour: #B575DB;
Brightness & contrast
Relative luminance0.27661WCAG 2.x, 0 is black and 1 is white
Perceived brightness152.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.53:1
Contrast with white3.21:1WCAG normal text: Fail
Contrast with black6.53:1WCAG normal text: AA
Greyscale equivalent#8A8A8A
Inverted#4A8A24
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.21:1WCAG large text: AA
Contrast with black, large text6.53:1WCAG large text: AAA
Named colours
Hue familyviolet
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#9BDB75
Analogous#8275DB, #DB75CE
Triadic#DBB575, #75DBB5
Split complementary#CEDB75, #75DB82
Tetradic#DB8275, #9BDB75, #75CEDB
Tints, shades & saturation
Channel breakdown
R181
G117
B219
Red181 (71%)
Green117 (45.9%)
Blue219 (85.9%)
Hue277.65°
Saturation (HSL)58.62%
Lightness65.88%
Dominant channelBlue
Hex per channelR B5 · G 75 · B DB
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Harmonies
Similar named colours
Also reads as
B575Db (chemical formula)
- Formula
- 6,483.75 g/mol
- 576 atoms
B575Db has a molar mass of 6,483.75 g/mol, made up of 576 atoms across 2 elements: 575 × B, 1 × Db.
Molar mass
Molar mass6,483.75 g/mol
Total atoms per molecule576
Distinct elements2
Mass of one molecule1.076652 × 10^-20 g
Molecules per gram9.2880521 × 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
B95.9%
Db4.1%
Boron (B × 575)6,215.75 g/mol, 95.867%
Dubnium (Db)268 g/mol, 4.133%
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