Recognised as Colour

#CB4577

#CB4577
Red
Dark
Nearest: Pale violetred

#CB4577 is a red with RGB values 203, 69, 119 and HSL 338°, 56%, 53%. It is a dark colour, so black text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Pale violetred.

Colour values

#CB4577#CB4577

HEX#CB4577

RGBrgb(203, 69, 119)

RGB (0–1)0.7961, 0.2706, 0.4667

RGB percentages79.6%, 27.1%, 46.7%

HSLhsl(337.6, 56.3%, 53.3%)

HSV / HSBhsv(337.6, 66%, 79.6%)

CMYK0%, 66%, 41.4%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,321,591

CSS custom property--colour: #CB4577;

Brightness & contrast

Relative luminance0.18285WCAG 2.x, 0 is black and 1 is white

Perceived brightness129.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.66:1

Contrast with white4.51:1WCAG normal text: AA

Contrast with black4.66:1WCAG normal text: AA

Greyscale equivalent#656565

Inverted#34BA88

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#606678no red cones; affects about 1% of men; ΔE 56.7 from the original

Deuteranopia#838074no green cones; the most common form, about 1% of men; ΔE 58.5 from the original

Tritanopia#DC3559no blue cones; rare, and affects men and women equally; ΔE 20.6 from the original

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

Contrast with white, large text4.51:1WCAG large text: AAA

Contrast with black, large text4.66:1WCAG large text: AAA

Named colours

Pale violetred · ΔE 15.7 Hot pink · ΔE 20.8 Medium violet red · ΔE 22 Indian red · ΔE 24.6 Light coral · ΔE 28.5 Deep pink · ΔE 29

Nearest named CSS colourPale violetred (#DB7093)ΔE 15.69, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#45CB99

Analogous#CB45BA, #CB5645

Triadic#77CB45, #4577CB

Split complementary#45CB56, #45BACB

Tetradic#BACB45, #45CB99, #5645CB

Tints, shades & saturation

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

Lighter +40%#F8E4EC

Lighter +30%#ECBDCE

Lighter +20%#E195B1

Lighter +10%#D66D94

Darker −10%#AD305F

Darker −20%#852549

Darker −30%#5D1A33

Darker −40%#350F1D

More saturated +25%#E9276F

Less saturated −25%#AD637F

Channel breakdown

R203

G69

B119

Red203 (79.6%)

Green69 (27.1%)

Blue119 (46.7%)

Hue337.61°

Saturation (HSL)56.3%

Lightness53.33%

Dominant channelRed

Hex per channelR CB · G 45 · B 77

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Harmonies

Lighter and darker

Similar named colours

Also reads as

CB4577 (chemical formula)

Formula
49,489.381 g/mol
4578 atoms

CB4577 has a molar mass of 49,489.381 g/mol, made up of 4578 atoms across 2 elements: 1 × C, 4577 × B.

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Molar mass

Molar mass49,489.381 g/mol

Total atoms per molecule4578

Distinct elements2

Mass of one molecule8.2179051 × 10^-20 g

Molecules per gram1.2168551 × 10^19

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

C0%

B100%

Carbon (C)12.011 g/mol, 0.024%

Boron (B × 4577)49,477.37 g/mol, 99.976%

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