Recognised as Colour

#C71C35

#C71C35
Red
Dark
Nearest: Crimson

#C71C35 is a red with RGB values 199, 28, 53 and HSL 351°, 75%, 45%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#C71C35#C71C35

HEX#C71C35

RGBrgb(199, 28, 53)

RGB (0–1)0.7804, 0.1098, 0.2078

RGB percentages78%, 11%, 20.8%

HSLhsl(351.2, 75.3%, 44.5%)

HSV / HSBhsv(351.2, 85.9%, 78%)

CMYK0%, 85.9%, 73.4%, 22%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,048,885

CSS custom property--colour: #C71C35;

Brightness & contrast

Relative luminance0.1323WCAG 2.x, 0 is black and 1 is white

Perceived brightness112.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.76:1

Contrast with white5.76:1WCAG normal text: AA

Contrast with black3.65:1WCAG normal text: Fail

Greyscale equivalent#424242

Inverted#38E3CA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#554F34no red cones; affects about 1% of men; ΔE 68.5 from the original

Deuteranopia#7F722Fno green cones; the most common form, about 1% of men; ΔE 68.1 from the original

Tritanopia#DB0028no blue cones; rare, and affects men and women equally; ΔE 14.5 from the original

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

Contrast with white, large text5.76:1WCAG large text: AAA

Contrast with black, large text3.65:1WCAG large text: AA

Named colours

Crimson · ΔE 8.2 Firebrick · ΔE 10.5 Brown · ΔE 15.4 Dark red · ΔE 21.8 Indian red · ΔE 23.9 Maroon · ΔE 24.4

Nearest named CSS colourCrimson (#DC143C)ΔE 8.17, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1CC7AE

Analogous#C71C8B, #C7581C

Triadic#35C71C, #1C35C7

Split complementary#1CC758, #1C8BC7

Tetradic#8BC71C, #1CC7AE, #581CC7

Tints, shades & saturation

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

Lighter +40%#F5BAC2

Lighter +30%#EF8D9B

Lighter +20%#E96074

Lighter +10%#E2344D

Darker −10%#9A1629

Darker −20%#6E0F1D

Darker −30%#410911

Darker −40%#140305

More saturated +25%#E30021

Less saturated −25%#AB3849

Channel breakdown

R199

G28

B53

Red199 (78%)

Green28 (11%)

Blue53 (20.8%)

Hue351.23°

Saturation (HSL)75.33%

Lightness44.51%

Dominant channelRed

Hex per channelR C7 · G 1C · B 35

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

C71C35 (chemical formula)

Formula
1,273.166 g/mol
106 atoms

C71C35 has a molar mass of 1,273.166 g/mol, made up of 106 atoms across 1 element: 106 × C.

Open this reading on its own page →

Molar mass

Molar mass1,273.166 g/mol

Total atoms per molecule106

Distinct elements1

Mass of one molecule2.1141419 × 10^-21 g

Molecules per gram4.7300515 × 10^20

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 × 106)1,273.166 g/mol, 100%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Carbon

Nerdulate something else

Nothing in mind? Surprise me · today’s page