Recognised as Colour
#ACBBB5
- #ACBBB5
- Cyan
- Dark
- Nearest: Silver
#ACBBB5 is a cyan with RGB values 172, 187, 181 and HSL 156°, 10%, 70%. It is a dark colour, so black text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Silver.
Colour values
#ACBBB5#ACBBB5
HEX#ACBBB5
RGBrgb(172, 187, 181)
RGB (0–1)0.6745, 0.7333, 0.7098
RGB percentages67.5%, 73.3%, 71%
HSLhsl(156, 9.9%, 70.4%)
HSV / HSBhsv(156, 8%, 73.3%)
CMYK8%, 0%, 3.2%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,320,245
CSS custom property--colour: #ACBBB5;
Brightness & contrast
Relative luminance0.47647WCAG 2.x, 0 is black and 1 is white
Perceived brightness182 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.53:1
Contrast with white1.99:1WCAG normal text: Fail
Contrast with black10.53:1WCAG normal text: AAA
Greyscale equivalent#B7B7B7
Inverted#53444A
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.99:1WCAG large text: Fail
Contrast with black, large text10.53:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#BBACB2
Analogous#ACBBAE, #ACBABB
Triadic#B5ACBB, #BBB5AC
Split complementary#BBACBA, #BBAEAC
Tetradic#AEACBB, #BBACB2, #BABBAC
Tints, shades & saturation
Channel breakdown
R172
G187
B181
Red172 (67.5%)
Green187 (73.3%)
Blue181 (71%)
Hue156°
Saturation (HSL)9.93%
Lightness70.39%
Dominant channelGreen
Hex per channelR AC · G BB · B B5
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Also reads as
AcBBB5 (chemical formula)
- Formula
- 302.67 g/mol
- 8 atoms
AcBBB5 has a molar mass of 302.67 g/mol, made up of 8 atoms across 2 elements: 1 × Ac, 7 × B.
Molar mass
Molar mass302.67 g/mol
Total atoms per molecule8
Distinct elements2
Mass of one molecule5.0259536 × 10^-22 g
Molecules per gram1.9896722 × 10^21
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
Ac75%
B25%
Actinium (Ac)227 g/mol, 74.999%
Boron (B × 7)75.67 g/mol, 25.001%
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