Recognised as Colour

#CB4355

#CB4355
Red
Dark
Nearest: Indian red

#CB4355 is a red with RGB values 203, 67, 85 and HSL 352°, 57%, 53%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#CB4355#CB4355

HEX#CB4355

RGBrgb(203, 67, 85)

RGB (0–1)0.7961, 0.2627, 0.3333

RGB percentages79.6%, 26.3%, 33.3%

HSLhsl(352.1, 56.7%, 52.9%)

HSV / HSBhsv(352.1, 67%, 79.6%)

CMYK0%, 67%, 58.1%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,321,045

CSS custom property--colour: #CB4355;

Brightness & contrast

Relative luminance0.17367WCAG 2.x, 0 is black and 1 is white

Perceived brightness125.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.69:1

Contrast with white4.69:1WCAG normal text: AA

Contrast with black4.47:1WCAG normal text: Fail

Greyscale equivalent#616161

Inverted#34BCAA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#656255no red cones; affects about 1% of men; ΔE 57.9 from the original

Deuteranopia#887E52no green cones; the most common form, about 1% of men; ΔE 58.2 from the original

Tritanopia#DE254Ano blue cones; rare, and affects men and women equally; ΔE 16 from the original

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

Contrast with white, large text4.69:1WCAG large text: AAA

Contrast with black, large text4.47:1WCAG large text: AA

Named colours

Indian red · ΔE 11.2 Brown · ΔE 16.2 Firebrick · ΔE 20.1 Crimson · ΔE 21.1 Light coral · ΔE 21.2 Salmon · ΔE 22.8

Nearest named CSS colourIndian red (#CD5C5C)ΔE 11.22, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#43CBB9

Analogous#CB4399, #CB7543

Triadic#55CB43, #4355CB

Split complementary#43CB75, #4399CB

Tetradic#99CB43, #43CBB9, #7543CB

Tints, shades & saturation

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

Lighter +40%#F7E3E6

Lighter +30%#ECBBC1

Lighter +20%#E1939D

Lighter +10%#D66B79

Darker −10%#AC2F40

Darker −20%#842431

Darker −30%#5C1922

Darker −40%#340E13

More saturated +25%#E9253F

Less saturated −25%#AD616B

Channel breakdown

R203

G67

B85

Red203 (79.6%)

Green67 (26.3%)

Blue85 (33.3%)

Hue352.06°

Saturation (HSL)56.67%

Lightness52.94%

Dominant channelRed

Hex per channelR CB · G 43 · B 55

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Harmonies

Lighter and darker

Similar named colours

Also reads as

CB4355 (chemical formula)

Formula
47,089.561 g/mol
4356 atoms

CB4355 has a molar mass of 47,089.561 g/mol, made up of 4356 atoms across 2 elements: 1 × C, 4355 × B.

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Molar mass

Molar mass47,089.561 g/mol

Total atoms per molecule4356

Distinct elements2

Mass of one molecule7.8194056 × 10^-20 g

Molecules per gram1.2788696 × 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, 0.026%

Boron (B × 4355)47,077.55 g/mol, 99.974%

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