Recognised as Colour

#FF1336

#FF1336
Red
Dark
Nearest: Crimson

#FF1336 is a red with RGB values 255, 19, 54 and HSL 351°, 100%, 54%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF1336#FF1336

HEX#FF1336

RGBrgb(255, 19, 54)

RGB (0–1)1, 0.0745, 0.2118

RGB percentages100%, 7.5%, 21.2%

HSLhsl(351.1, 100%, 53.7%)

HSV / HSBhsv(351.1, 92.5%, 100%)

CMYK0%, 92.5%, 78.8%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,716,598

CSS custom property--colour: #FF1336;

Brightness & contrast

Relative luminance0.21992WCAG 2.x, 0 is black and 1 is white

Perceived brightness141.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.4:1

Contrast with white3.89:1WCAG normal text: Fail

Contrast with black5.4:1WCAG normal text: AA

Greyscale equivalent#484848

Inverted#00ECC9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6D6234no red cones; affects about 1% of men; ΔE 85 from the original

Deuteranopia#A3922Bno green cones; the most common form, about 1% of men; ΔE 85.3 from the original

Tritanopia#FF0027no blue cones; rare, and affects men and women equally; ΔE 7.3 from the original

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

Contrast with white, large text3.89:1WCAG large text: AA

Contrast with black, large text5.4:1WCAG large text: AAA

Named colours

Crimson · ΔE 17.1 Red · ΔE 20.5 Tomato · ΔE 23.1 Orange red · ΔE 25.3 Firebrick · ΔE 29.3 Coral · ΔE 36.6

Nearest named CSS colourCrimson (#DC143C)ΔE 17.14, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#13FFDC

Analogous#FF13AC, #FF6613

Triadic#36FF13, #1336FF

Split complementary#13FF66, #13ACFF

Tetradic#ACFF13, #13FFDC, #6613FF

Tints, shades & saturation

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

Lighter +40%#FFDFE4

Lighter +30%#FFACB8

Lighter +20%#FF798D

Lighter +10%#FF4661

Darker −10%#DF0021

Darker −20%#AC001A

Darker −30%#790012

Darker −40%#46000A

More saturated +25%#FF1336

Less saturated −25%#E2314B

Channel breakdown

R255

G19

B54

Red255 (100%)

Green19 (7.5%)

Blue54 (21.2%)

Hue351.1°

Saturation (HSL)100%

Lightness53.73%

Dominant channelRed

Hex per channelR FF · G 13 · B 36

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF1336 (chemical formula)

Formula
25,400.326 g/mol
1337 atoms

FF1336 has a molar mass of 25,400.326 g/mol, made up of 1337 atoms across 1 element: 1337 × F.

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Molar mass

Molar mass25,400.326 g/mol

Total atoms per molecule1337

Distinct elements1

Mass of one molecule4.2178234 × 10^-20 g

Molecules per gram2.3708911 × 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 × 1337)25,400.326 g/mol, 100%

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Elements in this formula

Fluorine

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