Recognised as Colour

#FF1668

#FF1668
Red
Dark
Nearest: Crimson

#FF1668 is a red with RGB values 255, 22, 104 and HSL 339°, 100%, 54%. 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

#FF1668#FF1668

HEX#FF1668

RGBrgb(255, 22, 104)

RGB (0–1)1, 0.0863, 0.4078

RGB percentages100%, 8.6%, 40.8%

HSLhsl(338.9, 100%, 54.3%)

HSV / HSBhsv(338.9, 91.4%, 100%)

CMYK0%, 91.4%, 59.2%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,717,416

CSS custom property--colour: #FF1668;

Brightness & contrast

Relative luminance0.22833WCAG 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 5.57:1

Contrast with white3.77:1WCAG normal text: Fail

Contrast with black5.57:1WCAG normal text: AA

Greyscale equivalent#4D4D4D

Inverted#00E997

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#666769no red cones; affects about 1% of men; ΔE 84.4 from the original

Deuteranopia#9E9362no green cones; the most common form, about 1% of men; ΔE 85.3 from the original

Tritanopia#FF0041no blue cones; rare, and affects men and women equally; ΔE 21.6 from the original

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

Contrast with white, large text3.77:1WCAG large text: AA

Contrast with black, large text5.57:1WCAG large text: AAA

Named colours

Crimson · ΔE 19.9 Deep pink · ΔE 24.5 Hot pink · ΔE 35.4 Firebrick · ΔE 35.4 Indian red · ΔE 36.6 Medium violet red · ΔE 36.7

Nearest named CSS colourCrimson (#DC143C)ΔE 19.88, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#16FFAD

Analogous#FF16DC, #FF3916

Triadic#68FF16, #1668FF

Split complementary#16FF38, #16DCFF

Tetradic#DCFF16, #16FFAD, #3916FF

Tints, shades & saturation

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

Lighter +40%#FFE2EC

Lighter +30%#FFAFCB

Lighter +20%#FF7CAA

Lighter +10%#FF4989

Darker −10%#E20050

Darker −20%#AF003E

Darker −30%#7C002C

Darker −40%#49001A

More saturated +25%#FF1668

Less saturated −25%#E23371

Channel breakdown

R255

G22

B104

Red255 (100%)

Green22 (8.6%)

Blue104 (40.8%)

Hue338.88°

Saturation (HSL)100%

Lightness54.31%

Dominant channelRed

Hex per channelR FF · G 16 · B 68

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF1668 (chemical formula)

Formula
31,707.662 g/mol
1669 atoms

FF1668 has a molar mass of 31,707.662 g/mol, made up of 1669 atoms across 1 element: 1669 × F.

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Molar mass

Molar mass31,707.662 g/mol

Total atoms per molecule1669

Distinct elements1

Mass of one molecule5.2651811 × 10^-20 g

Molecules per gram1.8992699 × 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 × 1669)31,707.662 g/mol, 100%

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Elements in this formula

Fluorine

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