Recognised as Colour

#FF3166

#FF3166
Red
Dark
Nearest: Crimson

#FF3166 is a red with RGB values 255, 49, 102 and HSL 345°, 100%, 60%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF3166#FF3166

HEX#FF3166

RGBrgb(255, 49, 102)

RGB (0–1)1, 0.1922, 0.4

RGB percentages100%, 19.2%, 40%

HSLhsl(344.6, 100%, 59.6%)

HSV / HSBhsv(344.6, 80.8%, 100%)

CMYK0%, 80.8%, 60%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,724,326

CSS custom property--colour: #FF3166;

Brightness & contrast

Relative luminance0.24416WCAG 2.x, 0 is black and 1 is white

Perceived brightness148.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.88:1

Contrast with white3.57:1WCAG normal text: Fail

Contrast with black5.88:1WCAG normal text: AA

Greyscale equivalent#616161

Inverted#00CE99

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6E6D67no red cones; affects about 1% of men; ΔE 80.1 from the original

Deuteranopia#A29660no green cones; the most common form, about 1% of men; ΔE 80.6 from the original

Tritanopia#FF0049no blue cones; rare, and affects men and women equally; ΔE 14.9 from the original

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

Contrast with white, large text3.57:1WCAG large text: AA

Contrast with black, large text5.88:1WCAG large text: AAA

Named colours

Crimson · ΔE 16 Deep pink · ΔE 28.8 Firebrick · ΔE 31.2 Tomato · ΔE 31.3 Indian red · ΔE 31.7 Salmon · ΔE 33.8

Nearest named CSS colourCrimson (#DC143C)ΔE 16.03, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#31FFCA

Analogous#FF31CD, #FF6331

Triadic#66FF31, #3166FF

Split complementary#31FF63, #31CDFF

Tetradic#CDFF31, #31FFCA, #6331FF

Tints, shades & saturation

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

Lighter +40%#FFFDFE

Lighter +30%#FFCAD8

Lighter +20%#FF97B2

Lighter +10%#FF648C

Darker −10%#FD0041

Darker −20%#CA0034

Darker −30%#970027

Darker −40%#64001A

More saturated +25%#FF3166

Less saturated −25%#E54B73

Channel breakdown

R255

G49

B102

Red255 (100%)

Green49 (19.2%)

Blue102 (40%)

Hue344.56°

Saturation (HSL)100%

Lightness59.61%

Dominant channelRed

Hex per channelR FF · G 31 · B 66

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF3166 (chemical formula)

Formula
60,166.666 g/mol
3167 atoms

FF3166 has a molar mass of 60,166.666 g/mol, made up of 3167 atoms across 1 element: 3167 × F.

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Molar mass

Molar mass60,166.666 g/mol

Total atoms per molecule3167

Distinct elements1

Mass of one molecule9.9909099 × 10^-20 g

Molecules per gram1.0009098 × 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 × 3167)60,166.666 g/mol, 100%

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Elements in this formula

Fluorine

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