Recognised as Colour

#FF1648

#FF1648
Red
Dark
Nearest: Crimson

#FF1648 is a red with RGB values 255, 22, 72 and HSL 347°, 100%, 54%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF1648#FF1648

HEX#FF1648

RGBrgb(255, 22, 72)

RGB (0–1)1, 0.0863, 0.2824

RGB percentages100%, 8.6%, 28.2%

HSLhsl(347.1, 100%, 54.3%)

HSV / HSBhsv(347.1, 91.4%, 100%)

CMYK0%, 91.4%, 71.8%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,717,384

CSS custom property--colour: #FF1648;

Brightness & contrast

Relative luminance0.22302WCAG 2.x, 0 is black and 1 is white

Perceived brightness142.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.46:1

Contrast with white3.85:1WCAG normal text: Fail

Contrast with black5.46:1WCAG normal text: AA

Greyscale equivalent#4B4B4B

Inverted#00E9B7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6B6448no red cones; affects about 1% of men; ΔE 85 from the original

Deuteranopia#A29240no green cones; the most common form, about 1% of men; ΔE 84.7 from the original

Tritanopia#FF0030no blue cones; rare, and affects men and women equally; ΔE 12.6 from the original

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

Contrast with white, large text3.85:1WCAG large text: AA

Contrast with black, large text5.46:1WCAG large text: AAA

Named colours

Crimson · ΔE 11.9 Tomato · ΔE 25.1 Firebrick · ΔE 28.3 Red · ΔE 30.3 Orange red · ΔE 34.4 Brown · ΔE 35

Nearest named CSS colourCrimson (#DC143C)ΔE 11.89, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#16FFCD

Analogous#FF16BD, #FF5816

Triadic#48FF16, #1648FF

Split complementary#16FF58, #16BDFF

Tetradic#BDFF16, #16FFCD, #5816FF

Tints, shades & saturation

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

Lighter +40%#FFE2E8

Lighter +30%#FFAFC0

Lighter +20%#FF7C98

Lighter +10%#FF4970

Darker −10%#E20030

Darker −20%#AF0026

Darker −30%#7C001B

Darker −40%#490010

More saturated +25%#FF1648

Less saturated −25%#E23359

Channel breakdown

R255

G22

B72

Red255 (100%)

Green22 (8.6%)

Blue72 (28.2%)

Hue347.12°

Saturation (HSL)100%

Lightness54.31%

Dominant channelRed

Hex per channelR FF · G 16 · B 48

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF1648 (chemical formula)

Formula
31,327.702 g/mol
1649 atoms

FF1648 has a molar mass of 31,327.702 g/mol, made up of 1649 atoms across 1 element: 1649 × F.

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Molar mass

Molar mass31,327.702 g/mol

Total atoms per molecule1649

Distinct elements1

Mass of one molecule5.2020873 × 10^-20 g

Molecules per gram1.9223053 × 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 × 1649)31,327.702 g/mol, 100%

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Elements in this formula

Fluorine

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