Recognised as Colour

#C50043

#C50043
Red
Dark
Nearest: Crimson

#C50043 is a red with RGB values 197, 0, 67 and HSL 340°, 100%, 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

#C50043#C50043

HEX#C50043

RGBrgb(197, 0, 67)

RGB (0–1)0.7725, 0, 0.2627

RGB percentages77.3%, 0%, 26.3%

HSLhsl(339.6, 100%, 38.6%)

HSV / HSBhsv(339.6, 100%, 77.3%)

CMYK0%, 100%, 66%, 22.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,910,659

CSS custom property--colour: #C50043;

Brightness & contrast

Relative luminance0.12276WCAG 2.x, 0 is black and 1 is white

Perceived brightness110.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.08:1

Contrast with white6.08:1WCAG normal text: AA

Contrast with black3.46:1WCAG normal text: Fail

Greyscale equivalent#2F2F2F

Inverted#3AFFBC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4D4B43no red cones; affects about 1% of men; ΔE 71.1 from the original

Deuteranopia#796F3Eno green cones; the most common form, about 1% of men; ΔE 71.6 from the original

Tritanopia#D90026no blue cones; rare, and affects men and women equally; ΔE 23.4 from the original

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

Contrast with white, large text6.08:1WCAG large text: AAA

Contrast with black, large text3.46:1WCAG large text: AA

Named colours

Crimson · ΔE 13.5 Firebrick · ΔE 20.1 Brown · ΔE 20.5 Indian red · ΔE 25.7 Dark red · ΔE 29.2 Maroon · ΔE 30.3

Nearest named CSS colourCrimson (#DC143C)ΔE 13.55, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00C582

Analogous#C500A6, #C51F00

Triadic#43C500, #0043C5

Split complementary#00C520, #00A6C5

Tetradic#A6C500, #00C582, #1F00C5

Tints, shades & saturation

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

Lighter +40%#FF92B7

Lighter +30%#FF5F95

Lighter +20%#FF2C74

Lighter +10%#F80054

Darker −10%#920032

Darker −20%#5F0020

Darker −30%#2C000F

Darker −40%#000000

More saturated +25%#C50043

Less saturated −25%#AC194B

Channel breakdown

R197

B67

Red197 (77.3%)

Green0 (0%)

Blue67 (26.3%)

Hue339.59°

Saturation (HSL)100%

Lightness38.63%

Dominant channelRed

Hex per channelR C5 · G 00 · B 43

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C50043 (chemical formula)

Formula
601,066.473 g/mol
50043 atoms

C50043 has a molar mass of 601,066.473 g/mol, made up of 50043 atoms across 1 element: 50043 × C.

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Molar mass

Molar mass601,066.473 g/mol

Total atoms per molecule50043

Distinct elements1

Mass of one molecule9.9809436 × 10^-19 g

Molecules per gram1.0019093 × 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 × 50043)601,066.473 g/mol, 100%

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Elements in this formula

Carbon

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