Recognised as Colour

#AC97B4

#AC97B4
Violet
Dark
Nearest: Thistle

#AC97B4 is a violet with RGB values 172, 151, 180 and HSL 283°, 16%, 65%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Thistle.

Colour values

#AC97B4#AC97B4

HEX#AC97B4

RGBrgb(172, 151, 180)

RGB (0–1)0.6745, 0.5922, 0.7059

RGB percentages67.5%, 59.2%, 70.6%

HSLhsl(283.4, 16.2%, 64.9%)

HSV / HSBhsv(283.4, 16.1%, 70.6%)

CMYK4.4%, 16.1%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,311,028

CSS custom property--colour: #AC97B4;

Brightness & contrast

Relative luminance0.34199WCAG 2.x, 0 is black and 1 is white

Perceived brightness161 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.84:1

Contrast with white2.68:1WCAG normal text: Fail

Contrast with black7.84:1WCAG normal text: AAA

Greyscale equivalent#9E9E9E

Inverted#53684B

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#949DB5no red cones; affects about 1% of men; ΔE 11.3 from the original

Deuteranopia#989FB3no green cones; the most common form, about 1% of men; ΔE 11.5 from the original

Tritanopia#AC9AA1no blue cones; rare, and affects men and women equally; ΔE 12.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text2.68:1WCAG large text: Fail

Contrast with black, large text7.84:1WCAG large text: AAA

Named colours

Thistle · ΔE 15.2 Light slate grey · ΔE 18 Dark grey · ΔE 18.4 Rosy brown · ΔE 19.3 Slate grey · ΔE 19.7 Light steelblue · ΔE 19.9

Nearest named CSS colourThistle (#D8BFD8)ΔE 15.25, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#9FB497

Analogous#9E97B4, #B497AD

Triadic#B4AC97, #97B4AC

Split complementary#ADB497, #97B49E

Tetradic#B49E97, #9FB497, #97ADB4

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FFFFFF

Lighter +30%#F3F0F4

Lighter +20%#DBD2DF

Lighter +10%#C4B5C9

Darker −10%#94799F

Darker −20%#7B6085

Darker −30%#5F4B67

Darker −40%#44354A

More saturated +25%#B681CA

Less saturated −25%#A6A6A6

Channel breakdown

R172

G151

B180

Red172 (67.5%)

Green151 (59.2%)

Blue180 (70.6%)

Hue283.45°

Saturation (HSL)16.2%

Lightness64.9%

Dominant channelBlue

Hex per channelR AC · G 97 · B B4

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ac97B4 (chemical formula)

Formula
22,062.24 g/mol
101 atoms

Ac97B4 has a molar mass of 22,062.24 g/mol, made up of 101 atoms across 2 elements: 97 × Ac, 4 × B.

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Molar mass

Molar mass22,062.24 g/mol

Total atoms per molecule101

Distinct elements2

Mass of one molecule3.6635211 × 10^-20 g

Molecules per gram2.7296144 × 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

Ac99.8%

B0.2%

Actinium (Ac × 97)22,019 g/mol, 99.804%

Boron (B × 4)43.24 g/mol, 0.196%

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