Recognised as Colour

#B1B5B6

#B1B5B6
Grey
Dark
Nearest: Dark grey

#B1B5B6 is a grey with RGB values 177, 181, 182 and HSL 192°, 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 Dark grey.

Colour values

#B1B5B6#B1B5B6

HEX#B1B5B6

RGBrgb(177, 181, 182)

RGB (0–1)0.6941, 0.7098, 0.7137

RGB percentages69.4%, 71%, 71.4%

HSLhsl(192, 3.3%, 70.4%)

HSV / HSBhsv(192, 2.7%, 71.4%)

CMYK2.7%, 0.5%, 0%, 28.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,646,390

CSS custom property--colour: #B1B5B6;

Brightness & contrast

Relative luminance0.45772WCAG 2.x, 0 is black and 1 is white

Perceived brightness179.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 10.15:1

Contrast with white2.07:1WCAG normal text: Fail

Contrast with black10.15:1WCAG normal text: AAA

Greyscale equivalent#B4B4B4

Inverted#4E4A49

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#B4B5B6no red cones; affects about 1% of men; ΔE 1.1 from the original

Deuteranopia#B3B4B6no green cones; the most common form, about 1% of men; ΔE 1.2 from the original

Tritanopia#B0B5B5no blue cones; rare, and affects men and women equally; ΔE 0.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text2.07:1WCAG large text: Fail

Contrast with black, large text10.15:1WCAG large text: AAA

Named colours

Dark grey · ΔE 4.4 Silver · ΔE 4.6 Light grey · ΔE 11.3 Gainsboro · ΔE 14.4 Light steelblue · ΔE 15.1 Light blue · ΔE 17.7

Nearest named CSS colourDark grey (#A9A9A9)ΔE 4.44, a close match

Hue familygrey

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#B6B2B1

Analogous#B1B6B5, #B1B3B6

Triadic#B6B1B5, #B5B6B1

Split complementary#B6B1B3, #B6B5B1

Tetradic#B5B1B6, #B6B2B1, #B3B6B1

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#E6E7E7

Lighter +10%#CBCECF

Darker −10%#979C9D

Darker −20%#7C8385

Darker −30%#64696A

Darker −40%#4B4F50

More saturated +25%#9EC0C9

Less saturated −25%#B3B3B3

Channel breakdown

R177

G181

B182

Red177 (69.4%)

Green181 (71%)

Blue182 (71.4%)

Hue192°

Saturation (HSL)3.31%

Lightness70.39%

Dominant channelBlue

Hex per channelR B1 · G B5 · B B6

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

B1B5B6 (chemical formula)

Formula
129.72 g/mol
12 atoms

B1B5B6 has a molar mass of 129.72 g/mol, made up of 12 atoms across 1 element: 12 × B.

Open this reading on its own page →

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%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Boron

Nerdulate something else

Nothing in mind? Surprise me · today’s page