Recognised as Colour

#CC4340

#CC4340
Red
Dark
Nearest: Firebrick

#CC4340 is a red with RGB values 204, 67, 64 and HSL 1°, 58%, 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 Firebrick.

Colour values

#CC4340#CC4340

HEX#CC4340

RGBrgb(204, 67, 64)

RGB (0–1)0.8, 0.2627, 0.251

RGB percentages80%, 26.3%, 25.1%

HSLhsl(1.3, 57.9%, 52.5%)

HSV / HSBhsv(1.3, 68.6%, 80%)

CMYK0%, 67.2%, 68.6%, 20%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,386,560

CSS custom property--colour: #CC4340;

Brightness & contrast

Relative luminance0.17222WCAG 2.x, 0 is black and 1 is white

Perceived brightness124.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.73:1

Contrast with white4.73:1WCAG normal text: AA

Contrast with black4.44:1WCAG normal text: Fail

Greyscale equivalent#606060

Inverted#33BCBF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#69613Eno red cones; affects about 1% of men; ΔE 57.9 from the original

Deuteranopia#8B7E3Cno green cones; the most common form, about 1% of men; ΔE 58.2 from the original

Tritanopia#E01D44no blue cones; rare, and affects men and women equally; ΔE 17.1 from the original

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

Contrast with white, large text4.73:1WCAG large text: AAA

Contrast with black, large text4.44:1WCAG large text: AA

Named colours

Firebrick · ΔE 11 Brown · ΔE 11.9 Indian red · ΔE 14.4 Crimson · ΔE 17.2 Tomato · ΔE 20.1 Salmon · ΔE 20.9

Nearest named CSS colourFirebrick (#B22222)ΔE 11.04, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#40C9CC

Analogous#CC4083, #CC8940

Triadic#40CC43, #4340CC

Split complementary#40CC89, #4083CC

Tetradic#83CC40, #40C9CC, #8940CC

Tints, shades & saturation

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

Lighter +40%#F7E1E1

Lighter +30%#ECBAB9

Lighter +20%#E19291

Lighter +10%#D76B68

Darker −10%#AB302E

Darker −20%#832523

Darker −30%#5B1A18

Darker −40%#330E0D

More saturated +25%#EA2622

Less saturated −25%#AE605E

Channel breakdown

R204

G67

B64

Red204 (80%)

Green67 (26.3%)

Blue64 (25.1%)

Hue1.29°

Saturation (HSL)57.85%

Lightness52.55%

Dominant channelRed

Hex per channelR CC · G 43 · B 40

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Harmonies

Lighter and darker

Similar named colours

Also reads as

CC4340 (chemical formula)

Formula
52,139.751 g/mol
4341 atoms

CC4340 has a molar mass of 52,139.751 g/mol, made up of 4341 atoms across 1 element: 4341 × C.

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Molar mass

Molar mass52,139.751 g/mol

Total atoms per molecule4341

Distinct elements1

Mass of one molecule8.6580093 × 10^-20 g

Molecules per gram1.1549999 × 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

C100%

Carbon (C × 4341)52,139.751 g/mol, 100%

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Elements in this formula

Carbon

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