Recognised as Colour

#B74758

#B74758
Red
Dark
Nearest: Indian red

#B74758 is a red with RGB values 183, 71, 88 and HSL 351°, 44%, 50%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#B74758#B74758

HEX#B74758

RGBrgb(183, 71, 88)

RGB (0–1)0.7176, 0.2784, 0.3451

RGB percentages71.8%, 27.8%, 34.5%

HSLhsl(350.9, 44.1%, 49.8%)

HSV / HSBhsv(350.9, 61.2%, 71.8%)

CMYK0%, 61.2%, 51.9%, 28.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,011,352

CSS custom property--colour: #B74758;

Brightness & contrast

Relative luminance0.15278WCAG 2.x, 0 is black and 1 is white

Perceived brightness117.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.18:1

Contrast with white5.18:1WCAG normal text: AA

Contrast with black4.06:1WCAG normal text: Fail

Greyscale equivalent#606060

Inverted#48B8A7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#615F58no red cones; affects about 1% of men; ΔE 48.6 from the original

Deuteranopia#7D7655no green cones; the most common form, about 1% of men; ΔE 49.9 from the original

Tritanopia#C7354Eno blue cones; rare, and affects men and women equally; ΔE 13.3 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text5.18:1WCAG large text: AAA

Contrast with black, large text4.06:1WCAG large text: AA

Named colours

Indian red · ΔE 11.2 Brown · ΔE 18.9 Pale violetred · ΔE 19.9 Light coral · ΔE 21.3 Salmon · ΔE 26.1 Firebrick · ΔE 26.3

Nearest named CSS colourIndian red (#CD5C5C)ΔE 11.17, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#47B7A6

Analogous#B74790, #B76E47

Triadic#58B747, #4758B7

Split complementary#47B76E, #4790B7

Tetradic#90B747, #47B7A6, #6E47B7

Tints, shades & saturation

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

Lighter +40%#F0DADD

Lighter +30%#E2B5BC

Lighter +20%#D4909A

Lighter +10%#C66B79

Darker −10%#923946

Darker −20%#6E2A35

Darker −30%#491C23

Darker −40%#240E11

More saturated +25%#D72742

Less saturated −25%#97676E

Channel breakdown

R183

G71

B88

Red183 (71.8%)

Green71 (27.8%)

Blue88 (34.5%)

Hue350.89°

Saturation (HSL)44.09%

Lightness49.8%

Dominant channelRed

Hex per channelR B7 · G 47 · B 58

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B74758 (chemical formula)

Formula
808,133.98 g/mol
74758 atoms

B74758 has a molar mass of 808,133.98 g/mol, made up of 74758 atoms across 1 element: 74758 × B.

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Molar mass

Molar mass808,133.98 g/mol

Total atoms per molecule74758

Distinct elements1

Mass of one molecule1.341938 × 10^-18 g

Molecules per gram7.4519089 × 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 × 74758)808,133.98 g/mol, 100%

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Elements in this formula

Boron

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