Recognised as Colour

#B57874

#B57874
Red
Dark
Nearest: Rosy brown

#B57874 is a red with RGB values 181, 120, 116 and HSL 4°, 31%, 58%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Rosy brown.

Colour values

#B57874#B57874

HEX#B57874

RGBrgb(181, 120, 116)

RGB (0–1)0.7098, 0.4706, 0.4549

RGB percentages71%, 47.1%, 45.5%

HSLhsl(3.7, 30.5%, 58.2%)

HSV / HSBhsv(3.7, 35.9%, 71%)

CMYK0%, 33.7%, 35.9%, 29%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,892,852

CSS custom property--colour: #B57874;

Brightness & contrast

Relative luminance0.24518WCAG 2.x, 0 is black and 1 is white

Perceived brightness140.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.9:1

Contrast with white3.56:1WCAG normal text: Fail

Contrast with black5.9:1WCAG normal text: AA

Greyscale equivalent#858585

Inverted#4A878B

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#848173no red cones; affects about 1% of men; ΔE 25.3 from the original

Deuteranopia#938C73no green cones; the most common form, about 1% of men; ΔE 25.2 from the original

Tritanopia#C17177no blue cones; rare, and affects men and women equally; ΔE 9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.56:1WCAG large text: AA

Contrast with black, large text5.9:1WCAG large text: AAA

Named colours

Rosy brown · ΔE 10.9 Dark salmon · ΔE 21.1 Light coral · ΔE 22.9 Indian red · ΔE 23.9 Pale violetred · ΔE 25.3 Light pink · ΔE 25.8

Nearest named CSS colourRosy brown (#BC8F8F)ΔE 10.89, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#74B1B5

Analogous#B57491, #B59974

Triadic#74B578, #7874B5

Split complementary#74B598, #7491B5

Tetradic#91B574, #74B1B5, #9874B5

Tints, shades & saturation

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

Lighter +40%#FCF9F9

Lighter +30%#EAD9D8

Lighter +20%#D8B9B7

Lighter +10%#C79895

Darker −10%#A15A55

Darker −20%#7F4744

Darker −30%#5E3532

Darker −40%#3D2220

More saturated +25%#D06159

Less saturated −25%#9A8F8F

Channel breakdown

R181

G120

B116

Red181 (71%)

Green120 (47.1%)

Blue116 (45.5%)

Hue3.69°

Saturation (HSL)30.52%

Lightness58.24%

Dominant channelRed

Hex per channelR B5 · G 78 · B 74

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

B57874 (chemical formula)

Formula
625,617.94 g/mol
57874 atoms

B57874 has a molar mass of 625,617.94 g/mol, made up of 57874 atoms across 1 element: 57874 × B.

Open this reading on its own page →

Molar mass

Molar mass625,617.94 g/mol

Total atoms per molecule57874

Distinct elements1

Mass of one molecule1.038863 × 10^-18 g

Molecules per gram9.625908 × 10^17

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 × 57874)625,617.94 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