Recognised as Colour

#FF2847

#FF2847
Red
Dark
Nearest: Crimson

#FF2847 is a red with RGB values 255, 40, 71 and HSL 351°, 100%, 58%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF2847#FF2847

HEX#FF2847

RGBrgb(255, 40, 71)

RGB (0–1)1, 0.1569, 0.2784

RGB percentages100%, 15.7%, 27.8%

HSLhsl(351.3, 100%, 57.8%)

HSV / HSBhsv(351.3, 84.3%, 100%)

CMYK0%, 84.3%, 72.2%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,721,991

CSS custom property--colour: #FF2847;

Brightness & contrast

Relative luminance0.23233WCAG 2.x, 0 is black and 1 is white

Perceived brightness144.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.65:1

Contrast with white3.72:1WCAG normal text: Fail

Contrast with black5.65:1WCAG normal text: AA

Greyscale equivalent#585858

Inverted#00D7B8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#706846no red cones; affects about 1% of men; ΔE 82.2 from the original

Deuteranopia#A4943Fno green cones; the most common form, about 1% of men; ΔE 82.1 from the original

Tritanopia#FF0037no blue cones; rare, and affects men and women equally; ΔE 8.4 from the original

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

Contrast with white, large text3.72:1WCAG large text: AA

Contrast with black, large text5.65:1WCAG large text: AAA

Named colours

Crimson · ΔE 11.3 Tomato · ΔE 21.7 Firebrick · ΔE 26.5 Red · ΔE 28.9 Orange red · ΔE 31.8 Brown · ΔE 33.5

Nearest named CSS colourCrimson (#DC143C)ΔE 11.34, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#28FFE0

Analogous#FF28B3, #FF7428

Triadic#47FF28, #2847FF

Split complementary#28FF74, #28B3FF

Tetradic#B3FF28, #28FFE0, #7428FF

Tints, shades & saturation

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

Lighter +40%#FFF4F6

Lighter +30%#FFC1CA

Lighter +20%#FF8E9E

Lighter +10%#FF5B73

Darker −10%#F40023

Darker −20%#C1001C

Darker −30%#8E0014

Darker −40%#5B000D

More saturated +25%#FF2847

Less saturated −25%#E4435A

Channel breakdown

R255

G40

B71

Red255 (100%)

Green40 (15.7%)

Blue71 (27.8%)

Hue351.35°

Saturation (HSL)100%

Lightness57.84%

Dominant channelRed

Hex per channelR FF · G 28 · B 47

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF2847 (chemical formula)

Formula
54,106.304 g/mol
2848 atoms

FF2847 has a molar mass of 54,106.304 g/mol, made up of 2848 atoms across 1 element: 2848 × F.

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Molar mass

Molar mass54,106.304 g/mol

Total atoms per molecule2848

Distinct elements1

Mass of one molecule8.9845632 × 10^-20 g

Molecules per gram1.1130202 × 10^19

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 × 2848)54,106.304 g/mol, 100%

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Elements in this formula

Fluorine

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