Recognised as Colour
#B7B3B4
- #B7B3B4
- Grey
- Dark
- Nearest: Dark grey
#B7B3B4 is a grey with RGB values 183, 179, 180 and HSL 345°, 3%, 71%. It is a dark colour, so black text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Dark grey.
Colour values
#B7B3B4#B7B3B4
HEX#B7B3B4
RGBrgb(183, 179, 180)
RGB (0–1)0.7176, 0.702, 0.7059
RGB percentages71.8%, 70.2%, 70.6%
HSLhsl(345, 2.7%, 71%)
HSV / HSBhsv(345, 2.2%, 71.8%)
CMYK0%, 2.2%, 1.6%, 28.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,039,092
CSS custom property--colour: #B7B3B4;
Brightness & contrast
Relative luminance0.45603WCAG 2.x, 0 is black and 1 is white
Perceived brightness180.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.12:1
Contrast with white2.07:1WCAG normal text: Fail
Contrast with black10.12:1WCAG normal text: AAA
Greyscale equivalent#B4B4B4
Inverted#484C4B
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.07:1WCAG large text: Fail
Contrast with black, large text10.12:1WCAG large text: AAA
Named colours
Hue familygrey
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#B3B7B6
Analogous#B7B3B6, #B7B4B3
Triadic#B4B7B3, #B3B4B7
Split complementary#B3B7B4, #B3B6B7
Tetradic#B6B7B3, #B3B7B6, #B4B3B7
Tints, shades & saturation
Channel breakdown
R183
G179
B180
Red183 (71.8%)
Green179 (70.2%)
Blue180 (70.6%)
Hue345°
Saturation (HSL)2.7%
Lightness70.98%
Dominant channelRed
Hex per channelR B7 · G B3 · B B4
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Also reads as
B7B3B4 (chemical formula)
- Formula
- 151.34 g/mol
- 14 atoms
B7B3B4 has a molar mass of 151.34 g/mol, made up of 14 atoms across 1 element: 14 × B.
Molar mass
Molar mass151.34 g/mol
Total atoms per molecule14
Distinct elements1
Mass of one molecule2.5130598 × 10^-22 g
Molecules per gram3.9792129 × 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 × 14)151.34 g/mol, 100%
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