Recognised as Colour
#B5B6B1
- #B5B6B1
- Grey
- Dark
- Nearest: Silver
#B5B6B1 is a grey with RGB values 181, 182, 177 and HSL 72°, 3%, 70%. It is a dark colour, so black text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Silver.
Colour values
#B5B6B1#B5B6B1
HEX#B5B6B1
RGBrgb(181, 182, 177)
RGB (0–1)0.7098, 0.7137, 0.6941
RGB percentages71%, 71.4%, 69.4%
HSLhsl(72, 3.3%, 70.4%)
HSV / HSBhsv(72, 2.7%, 71.4%)
CMYK0.5%, 0%, 2.7%, 28.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,908,785
CSS custom property--colour: #B5B6B1;
Brightness & contrast
Relative luminance0.46454WCAG 2.x, 0 is black and 1 is white
Perceived brightness181.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.29:1
Contrast with white2.04:1WCAG normal text: Fail
Contrast with black10.29:1WCAG normal text: AAA
Greyscale equivalent#B5B5B5
Inverted#4A494E
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.04:1WCAG large text: Fail
Contrast with black, large text10.29:1WCAG large text: AAA
Named colours
Hue familygrey
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#B2B1B6
Analogous#B6B5B1, #B3B6B1
Triadic#B1B5B6, #B6B1B5
Split complementary#B1B3B6, #B5B1B6
Tetradic#B1B6B5, #B2B1B6, #B6B1B3
Tints, shades & saturation
Channel breakdown
R181
G182
B177
Red181 (71%)
Green182 (71.4%)
Blue177 (69.4%)
Hue72°
Saturation (HSL)3.31%
Lightness70.39%
Dominant channelGreen
Hex per channelR B5 · G B6 · B B1
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Also reads as
B5B6B1 (chemical formula)
- Formula
- 129.72 g/mol
- 12 atoms
B5B6B1 has a molar mass of 129.72 g/mol, made up of 12 atoms across 1 element: 12 × B.
Molar mass
Molar mass129.72 g/mol
Total atoms per molecule12
Distinct elements1
Mass of one molecule2.1540513 × 10^-22 g
Molecules per gram4.642415 × 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
B100%
Boron (B × 12)129.72 g/mol, 100%
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