Recognised as Colour

#B56C63

#B56C63
Red
Dark
Nearest: Indian red

#B56C63 is a red with RGB values 181, 108, 99 and HSL 7°, 36%, 55%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#B56C63#B56C63

HEX#B56C63

RGBrgb(181, 108, 99)

RGB (0–1)0.7098, 0.4235, 0.3882

RGB percentages71%, 42.4%, 38.8%

HSLhsl(6.6, 35.7%, 54.9%)

HSV / HSBhsv(6.6, 45.3%, 71%)

CMYK0%, 40.3%, 45.3%, 29%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,889,763

CSS custom property--colour: #B56C63;

Brightness & contrast

Relative luminance0.2145WCAG 2.x, 0 is black and 1 is white

Perceived brightness133.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.29:1

Contrast with white3.97:1WCAG normal text: Fail

Contrast with black5.29:1WCAG normal text: AA

Greyscale equivalent#7B7B7B

Inverted#4A939C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7C7762no red cones; affects about 1% of men; ΔE 30.5 from the original

Deuteranopia#8E8562no green cones; the most common form, about 1% of men; ΔE 30.5 from the original

Tritanopia#C3626Ano blue cones; rare, and affects men and women equally; ΔE 12.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.97:1WCAG large text: AA

Contrast with black, large text5.29:1WCAG large text: AAA

Named colours

Indian red · ΔE 17.4 Rosy brown · ΔE 18.5 Dark salmon · ΔE 19.3 Light coral · ΔE 19.6 Sienna · ΔE 20.6 Salmon · ΔE 24.9

Nearest named CSS colourIndian red (#CD5C5C)ΔE 17.42, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#63ACB5

Analogous#B56383, #B59563

Triadic#63B56C, #6C63B5

Split complementary#63B595, #6383B5

Tetradic#83B563, #63ACB5, #9563B5

Tints, shades & saturation

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

Lighter +40%#F7EEED

Lighter +30%#E6CECB

Lighter +20%#D6ADA8

Lighter +10%#C58D86

Darker −10%#9B534A

Darker −20%#794039

Darker −30%#562E29

Darker −40%#341B18

More saturated +25%#D25646

Less saturated −25%#988280

Channel breakdown

R181

G108

B99

Red181 (71%)

Green108 (42.4%)

Blue99 (38.8%)

Hue6.59°

Saturation (HSL)35.65%

Lightness54.9%

Dominant channelRed

Hex per channelR B5 · G 6C · B 63

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B56C63 (chemical formula)

Formula
1,362.053 g/mol
119 atoms

B56C63 has a molar mass of 1,362.053 g/mol, made up of 119 atoms across 2 elements: 56 × B, 63 × C.

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Molar mass

Molar mass1,362.053 g/mol

Total atoms per molecule119

Distinct elements2

Mass of one molecule2.2617422 × 10^-21 g

Molecules per gram4.4213704 × 10^20

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

B44.4%

C55.6%

Boron (B × 56)605.36 g/mol, 44.445%

Carbon (C × 63)756.693 g/mol, 55.555%

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