Recognised as Colour

#C72826

#C72826
Red
Dark
Nearest: Firebrick

#C72826 is a red with RGB values 199, 40, 38 and HSL 1°, 68%, 46%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#C72826#C72826

HEX#C72826

RGBrgb(199, 40, 38)

RGB (0–1)0.7804, 0.1569, 0.149

RGB percentages78%, 15.7%, 14.9%

HSLhsl(0.7, 67.9%, 46.5%)

HSV / HSBhsv(0.7, 80.9%, 78%)

CMYK0%, 79.9%, 80.9%, 22%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,051,942

CSS custom property--colour: #C72826;

Brightness & contrast

Relative luminance0.138WCAG 2.x, 0 is black and 1 is white

Perceived brightness113.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.59:1

Contrast with white5.59:1WCAG normal text: AA

Contrast with black3.76:1WCAG normal text: Fail

Greyscale equivalent#4A4A4A

Inverted#38D7D9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5B5223no red cones; affects about 1% of men; ΔE 65.6 from the original

Deuteranopia#82741Eno green cones; the most common form, about 1% of men; ΔE 65.4 from the original

Tritanopia#DB002Ano blue cones; rare, and affects men and women equally; ΔE 11.7 from the original

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

Contrast with white, large text5.59:1WCAG large text: AAA

Contrast with black, large text3.76:1WCAG large text: AA

Named colours

Firebrick · ΔE 7.8 Crimson · ΔE 13.5 Brown · ΔE 16.8 Dark red · ΔE 18.5 Tomato · ΔE 19.1 Maroon · ΔE 22.5

Nearest named CSS colourFirebrick (#B22222)ΔE 7.78, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#26C5C7

Analogous#C72675, #C77826

Triadic#26C728, #2826C7

Split complementary#26C778, #2675C7

Tetradic#75C726, #26C5C7, #7826C7

Tints, shades & saturation

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

Lighter +40%#F4C6C5

Lighter +30%#EC9B9A

Lighter +20%#E4716F

Lighter +10%#DB4645

Darker −10%#9C1F1E

Darker −20%#711716

Darker −30%#470E0D

Darker −40%#1C0605

More saturated +25%#E50B08

Less saturated −25%#A94544

Channel breakdown

R199

G40

B38

Red199 (78%)

Green40 (15.7%)

Blue38 (14.9%)

Hue0.75°

Saturation (HSL)67.93%

Lightness46.47%

Dominant channelRed

Hex per channelR C7 · G 28 · B 26

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C72826 (chemical formula)

Formula
874,713.086 g/mol
72826 atoms

C72826 has a molar mass of 874,713.086 g/mol, made up of 72826 atoms across 1 element: 72826 × C.

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Molar mass

Molar mass874,713.086 g/mol

Total atoms per molecule72826

Distinct elements1

Mass of one molecule1.4524953 × 10^-18 g

Molecules per gram6.8847041 × 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 × 72826)874,713.086 g/mol, 100%

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Elements in this formula

Carbon

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