Recognised as Colour

#C80040

#C80040
Red
Dark
Nearest: Crimson

#C80040 is a red with RGB values 200, 0, 64 and HSL 341°, 100%, 39%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#C80040#C80040

HEX#C80040

RGBrgb(200, 0, 64)

RGB (0–1)0.7843, 0, 0.251

RGB percentages78.4%, 0%, 25.1%

HSLhsl(340.8, 100%, 39.2%)

HSV / HSBhsv(340.8, 100%, 78.4%)

CMYK0%, 100%, 68%, 21.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,107,264

CSS custom property--colour: #C80040;

Brightness & contrast

Relative luminance0.1265WCAG 2.x, 0 is black and 1 is white

Perceived brightness111.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.95:1

Contrast with white5.95:1WCAG normal text: AA

Contrast with black3.53:1WCAG normal text: Fail

Greyscale equivalent#2F2F2F

Inverted#37FFBF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4F4B40no red cones; affects about 1% of men; ΔE 71.6 from the original

Deuteranopia#7C713Ano green cones; the most common form, about 1% of men; ΔE 72.4 from the original

Tritanopia#DC0025no blue cones; rare, and affects men and women equally; ΔE 22.1 from the original

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

Contrast with white, large text5.95:1WCAG large text: AAA

Contrast with black, large text3.53:1WCAG large text: AA

Named colours

Crimson · ΔE 10.8 Firebrick · ΔE 18.4 Brown · ΔE 20.1 Indian red · ΔE 26 Dark red · ΔE 28 Maroon · ΔE 29.6

Nearest named CSS colourCrimson (#DC143C)ΔE 10.76, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00C888

Analogous#C800A4, #C82400

Triadic#40C800, #0040C8

Split complementary#00C824, #00A4C8

Tetradic#A4C800, #00C888, #2400C8

Tints, shades & saturation

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

Lighter +40%#FF95B7

Lighter +30%#FF6294

Lighter +20%#FF2F72

Lighter +10%#FB0050

Darker −10%#950030

Darker −20%#62001F

Darker −30%#2F000F

Darker −40%#000000

More saturated +25%#C80040

Less saturated −25%#AF1949

Channel breakdown

R200

B64

Red200 (78.4%)

Green0 (0%)

Blue64 (25.1%)

Hue340.8°

Saturation (HSL)100%

Lightness39.22%

Dominant channelRed

Hex per channelR C8 · G 00 · B 40

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C80040 (chemical formula)

Formula
961,360.44 g/mol
80040 atoms

C80040 has a molar mass of 961,360.44 g/mol, made up of 80040 atoms across 1 element: 80040 × C.

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Molar mass

Molar mass961,360.44 g/mol

Total atoms per molecule80040

Distinct elements1

Mass of one molecule1.5963766 × 10^-18 g

Molecules per gram6.2641862 × 10^17

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 × 80040)961,360.44 g/mol, 100%

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Elements in this formula

Carbon

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