Recognised as Colour
#AC97B9
- #AC97B9
- Violet
- Dark
- Nearest: Thistle
#AC97B9 is a violet with RGB values 172, 151, 185 and HSL 277°, 20%, 66%. It is a dark colour, so black text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Thistle.
Colour values
#AC97B9#AC97B9
HEX#AC97B9
RGBrgb(172, 151, 185)
RGB (0–1)0.6745, 0.5922, 0.7255
RGB percentages67.5%, 59.2%, 72.5%
HSLhsl(277.1, 19.5%, 65.9%)
HSV / HSBhsv(277.1, 18.4%, 72.5%)
CMYK7%, 18.4%, 0%, 27.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,311,033
CSS custom property--colour: #AC97B9;
Brightness & contrast
Relative luminance0.34407WCAG 2.x, 0 is black and 1 is white
Perceived brightness161.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.88:1
Contrast with white2.66:1WCAG normal text: Fail
Contrast with black7.88:1WCAG normal text: AAA
Greyscale equivalent#9E9E9E
Inverted#536846
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.66:1WCAG large text: Fail
Contrast with black, large text7.88:1WCAG large text: AAA
Named colours
Hue familyviolet
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#A4B997
Analogous#9B97B9, #B997B5
Triadic#B9AC97, #97B9AC
Split complementary#B5B997, #97B99B
Tetradic#B99B97, #A4B997, #97B5B9
Tints, shades & saturation
Channel breakdown
R172
G151
B185
Red172 (67.5%)
Green151 (59.2%)
Blue185 (72.5%)
Hue277.06°
Saturation (HSL)19.54%
Lightness65.88%
Dominant channelBlue
Hex per channelR AC · G 97 · B B9
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Harmonies
Similar named colours
Also reads as
Ac97B9 (chemical formula)
- Formula
- 22,116.29 g/mol
- 106 atoms
Ac97B9 has a molar mass of 22,116.29 g/mol, made up of 106 atoms across 2 elements: 97 × Ac, 9 × B.
Molar mass
Molar mass22,116.29 g/mol
Total atoms per molecule106
Distinct elements2
Mass of one molecule3.6724964 × 10^-20 g
Molecules per gram2.7229435 × 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
Ac99.6%
B0.4%
Actinium (Ac × 97)22,019 g/mol, 99.56%
Boron (B × 9)97.29 g/mol, 0.44%
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