Recognised as Colour
#B1B6B5
- #B1B6B5
- Grey
- Dark
- Nearest: Silver
#B1B6B5 is a grey with RGB values 177, 182, 181 and HSL 168°, 3%, 70%. It is a dark colour, so black text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Silver.
Colour values
#B1B6B5#B1B6B5
HEX#B1B6B5
RGBrgb(177, 182, 181)
RGB (0–1)0.6941, 0.7137, 0.7098
RGB percentages69.4%, 71.4%, 71%
HSLhsl(168, 3.3%, 70.4%)
HSV / HSBhsv(168, 2.7%, 71.4%)
CMYK2.7%, 0%, 0.5%, 28.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,646,645
CSS custom property--colour: #B1B6B5;
Brightness & contrast
Relative luminance0.46139WCAG 2.x, 0 is black and 1 is white
Perceived brightness180.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.23:1
Contrast with white2.05:1WCAG normal text: Fail
Contrast with black10.23:1WCAG normal text: AAA
Greyscale equivalent#B5B5B5
Inverted#4E494A
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.05:1WCAG large text: Fail
Contrast with black, large text10.23:1WCAG large text: AAA
Named colours
Hue familygrey
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#B6B1B2
Analogous#B1B6B3, #B1B5B6
Triadic#B5B1B6, #B6B5B1
Split complementary#B6B1B5, #B6B3B1
Tetradic#B3B1B6, #B6B1B2, #B5B6B1
Tints, shades & saturation
Channel breakdown
R177
G182
B181
Red177 (69.4%)
Green182 (71.4%)
Blue181 (71%)
Hue168°
Saturation (HSL)3.31%
Lightness70.39%
Dominant channelGreen
Hex per channelR B1 · G B6 · B B5
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Also reads as
B1B6B5 (chemical formula)
- Formula
- 129.72 g/mol
- 12 atoms
B1B6B5 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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