Recognised as Colour

#CB2C40

#CB2C40
Red
Dark
Nearest: Crimson

#CB2C40 is a red with RGB values 203, 44, 64 and HSL 352°, 64%, 48%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#CB2C40#CB2C40

HEX#CB2C40

RGBrgb(203, 44, 64)

RGB (0–1)0.7961, 0.1725, 0.251

RGB percentages79.6%, 17.3%, 25.1%

HSLhsl(352.5, 64.4%, 48.4%)

HSV / HSBhsv(352.5, 78.3%, 79.6%)

CMYK0%, 78.3%, 68.5%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,315,136

CSS custom property--colour: #CB2C40;

Brightness & contrast

Relative luminance0.14868WCAG 2.x, 0 is black and 1 is white

Perceived brightness118 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.28:1

Contrast with white5.28:1WCAG normal text: AA

Contrast with black3.97:1WCAG normal text: Fail

Greyscale equivalent#4F4F4F

Inverted#34D3BF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5C563Fno red cones; affects about 1% of men; ΔE 65.4 from the original

Deuteranopia#84783Bno green cones; the most common form, about 1% of men; ΔE 65.9 from the original

Tritanopia#DF0035no blue cones; rare, and affects men and women equally; ΔE 15 from the original

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

Contrast with white, large text5.28:1WCAG large text: AAA

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

Named colours

Crimson · ΔE 10.8 Firebrick · ΔE 12.5 Brown · ΔE 14.4 Indian red · ΔE 19.6 Dark red · ΔE 24 Tomato · ΔE 24.8

Nearest named CSS colourCrimson (#DC143C)ΔE 10.78, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2CCBB7

Analogous#CB2C90, #CB672C

Triadic#40CB2C, #2C40CB

Split complementary#2CCB67, #2C90CB

Tetradic#90CB2C, #2CCBB7, #672CCB

Tints, shades & saturation

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

Lighter +40%#F4CFD3

Lighter +30%#EBA5AE

Lighter +20%#E27B88

Lighter +10%#D95162

Darker −10%#A12333

Darker −20%#771A26

Darker −30%#4D1118

Darker −40%#23080B

More saturated +25%#EA0D29

Less saturated −25%#AC4B57

Channel breakdown

R203

G44

B64

Red203 (79.6%)

Green44 (17.3%)

Blue64 (25.1%)

Hue352.45°

Saturation (HSL)64.37%

Lightness48.43%

Dominant channelRed

Hex per channelR CB · G 2C · B 40

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Harmonies

Lighter and darker

Similar named colours

Also reads as

CB2C40 (chemical formula)

Formula
514.071 g/mol
43 atoms

CB2C40 has a molar mass of 514.071 g/mol, made up of 43 atoms across 2 elements: 41 × C, 2 × B.

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Molar mass

Molar mass514.071 g/mol

Total atoms per molecule43

Distinct elements2

Mass of one molecule8.5363498 × 10^-22 g

Molecules per gram1.1714609 × 10^21

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

C95.8%

B4.2%

Carbon (C × 41)492.451 g/mol, 95.794%

Boron (B × 2)21.62 g/mol, 4.206%

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