Recognised as Colour

#C40140

#C40140
Red
Dark
Nearest: Crimson

#C40140 is a red with RGB values 196, 1, 64 and HSL 341°, 99%, 39%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#C40140#C40140

HEX#C40140

RGBrgb(196, 1, 64)

RGB (0–1)0.7686, 0.0039, 0.251

RGB percentages76.9%, 0.4%, 25.1%

HSLhsl(340.6, 99%, 38.6%)

HSV / HSBhsv(340.6, 99.5%, 76.9%)

CMYK0%, 99.5%, 67.3%, 23.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,845,376

CSS custom property--colour: #C40140;

Brightness & contrast

Relative luminance0.12128WCAG 2.x, 0 is black and 1 is white

Perceived brightness109.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.13:1

Contrast with white6.13:1WCAG normal text: AA

Contrast with black3.43:1WCAG normal text: Fail

Greyscale equivalent#2F2F2F

Inverted#3BFEBF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4D4A40no red cones; affects about 1% of men; ΔE 70.7 from the original

Deuteranopia#796E3Bno green cones; the most common form, about 1% of men; ΔE 70.8 from the original

Tritanopia#D80025no blue cones; rare, and affects men and women equally; ΔE 22.2 from the original

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

Contrast with white, large text6.13:1WCAG large text: AAA

Contrast with black, large text3.43:1WCAG large text: AA

Named colours

Crimson · ΔE 12.4 Firebrick · ΔE 18.5 Brown · ΔE 19.4 Indian red · ΔE 25.4 Dark red · ΔE 27.7 Maroon · ΔE 29

Nearest named CSS colourCrimson (#DC143C)ΔE 12.44, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#01C485

Analogous#C401A2, #C42401

Triadic#40C401, #0140C4

Split complementary#01C424, #01A2C4

Tetradic#A1C401, #01C485, #2401C4

Tints, shades & saturation

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

Lighter +40%#FE93B5

Lighter +30%#FE6093

Lighter +20%#FE2D71

Lighter +10%#F70151

Darker −10%#91012F

Darker −20%#5F001F

Darker −30%#2C000E

Darker −40%#000000

More saturated +25%#C50040

Less saturated −25%#AB1A49

Channel breakdown

R196

B64

Red196 (76.9%)

Green1 (0.4%)

Blue64 (25.1%)

Hue340.62°

Saturation (HSL)98.98%

Lightness38.63%

Dominant channelRed

Hex per channelR C4 · G 01 · B 40

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C40140 (chemical formula)

Formula
482,121.54 g/mol
40140 atoms

C40140 has a molar mass of 482,121.54 g/mol, made up of 40140 atoms across 1 element: 40140 × C.

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Molar mass

Molar mass482,121.54 g/mol

Total atoms per molecule40140

Distinct elements1

Mass of one molecule8.0058165 × 10^-19 g

Molecules per gram1.2490918 × 10^18

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 × 40140)482,121.54 g/mol, 100%

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Elements in this formula

Carbon

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