Recognised as Colour

#B66161

#B66161
Red
Dark
Nearest: Indian red

#B66161 is a red with RGB values 182, 97, 97 and HSL 0°, 37%, 55%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#B66161#B66161

HEX#B66161

RGBrgb(182, 97, 97)

RGB (0–1)0.7137, 0.3804, 0.3804

RGB percentages71.4%, 38%, 38%

HSLhsl(0, 36.8%, 54.7%)

HSV / HSBhsv(0, 46.7%, 71.4%)

CMYK0%, 46.7%, 46.7%, 28.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,952,481

CSS custom property--colour: #B66161;

Brightness & contrast

Relative luminance0.19358WCAG 2.x, 0 is black and 1 is white

Perceived brightness128.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.87:1

Contrast with white4.31:1WCAG normal text: Fail

Contrast with black4.87:1WCAG normal text: AA

Greyscale equivalent#737373

Inverted#499E9E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#736F60no red cones; affects about 1% of men; ΔE 36.3 from the original

Deuteranopia#88805Fno green cones; the most common form, about 1% of men; ΔE 36.9 from the original

Tritanopia#C55662no blue cones; rare, and affects men and women equally; ΔE 11.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text4.31:1WCAG large text: AA

Contrast with black, large text4.87:1WCAG large text: AAA

Named colours

Indian red · ΔE 12.7 Light coral · ΔE 17.8 Pale violetred · ΔE 21.1 Sienna · ΔE 22 Rosy brown · ΔE 23 Dark salmon · ΔE 23.2

Nearest named CSS colourIndian red (#CD5C5C)ΔE 12.74, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#61B6B6

Analogous#B6618C, #B68C61

Triadic#61B661, #6161B6

Split complementary#61B68C, #618CB6

Tetradic#8CB661, #61B6B6, #8C61B6

Tints, shades & saturation

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

Lighter +40%#F6EDED

Lighter +30%#E6CACA

Lighter +20%#D6A7A7

Lighter +10%#C68484

Darker −10%#9C4848

Darker −20%#793838

Darker −30%#562828

Darker −40%#331818

More saturated +25%#D34444

Less saturated −25%#997E7E

Channel breakdown

R182

G97

B97

Red182 (71.4%)

Green97 (38%)

Blue97 (38%)

Hue0°

Saturation (HSL)36.8%

Lightness54.71%

Dominant channelRed

Hex per channelR B6 · G 61 · B 61

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B66161 (chemical formula)

Formula
715,200.41 g/mol
66161 atoms

B66161 has a molar mass of 715,200.41 g/mol, made up of 66161 atoms across 1 element: 66161 × B.

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Molar mass

Molar mass715,200.41 g/mol

Total atoms per molecule66161

Distinct elements1

Mass of one molecule1.1876182 × 10^-18 g

Molecules per gram8.4202144 × 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 × 66161)715,200.41 g/mol, 100%

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Elements in this formula

Boron

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