Recognised as Colour

#FF3571

#FF3571
Red
Dark
Nearest: Crimson

#FF3571 is a red with RGB values 255, 53, 113 and HSL 342°, 100%, 60%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF3571#FF3571

HEX#FF3571

RGBrgb(255, 53, 113)

RGB (0–1)1, 0.2078, 0.4431

RGB percentages100%, 20.8%, 44.3%

HSLhsl(342.2, 100%, 60.4%)

HSV / HSBhsv(342.2, 79.2%, 100%)

CMYK0%, 79.2%, 55.7%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,725,361

CSS custom property--colour: #FF3571;

Brightness & contrast

Relative luminance0.24998WCAG 2.x, 0 is black and 1 is white

Perceived brightness150.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6:1

Contrast with white3.5:1WCAG normal text: Fail

Contrast with black6:1WCAG normal text: AA

Greyscale equivalent#646464

Inverted#00CA8E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6E6F72no red cones; affects about 1% of men; ΔE 78.6 from the original

Deuteranopia#A2986Cno green cones; the most common form, about 1% of men; ΔE 80 from the original

Tritanopia#FF0050no blue cones; rare, and affects men and women equally; ΔE 16.8 from the original

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

Contrast with white, large text3.5:1WCAG large text: AA

Contrast with black, large text6:1WCAG large text: AAA

Named colours

Crimson · ΔE 20.8 Deep pink · ΔE 23.4 Hot pink · ΔE 30.5 Indian red · ΔE 32.1 Medium violet red · ΔE 34 Firebrick · ΔE 34.6

Nearest named CSS colourCrimson (#DC143C)ΔE 20.81, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#35FFC3

Analogous#FF35D6, #FF5E35

Triadic#71FF35, #3571FF

Split complementary#35FF5E, #35D6FF

Tetradic#D6FF35, #35FFC3, #5E35FF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFCEDD

Lighter +20%#FF9BB9

Lighter +10%#FF6895

Darker −10%#FF024D

Darker −20%#CE003D

Darker −30%#9B002E

Darker −40%#68001F

More saturated +25%#FF3571

Less saturated −25%#E64E7B

Channel breakdown

R255

G53

B113

Red255 (100%)

Green53 (20.8%)

Blue113 (44.3%)

Hue342.18°

Saturation (HSL)100%

Lightness60.39%

Dominant channelRed

Hex per channelR FF · G 35 · B 71

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

FF3571 (chemical formula)

Formula
67,860.856 g/mol
3572 atoms

FF3571 has a molar mass of 67,860.856 g/mol, made up of 3572 atoms across 1 element: 3572 × F.

Open this reading on its own page →

Molar mass

Molar mass67,860.856 g/mol

Total atoms per molecule3572

Distinct elements1

Mass of one molecule1.126856 × 10^-19 g

Molecules per gram8.8742482 × 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

F100%

Fluorine (F × 3572)67,860.856 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

Fluorine

Nerdulate something else

Nothing in mind? Surprise me · today’s page