Recognised as Colour

#FF1451

#FF1451
Red
Dark
Nearest: Crimson

#FF1451 is a red with RGB values 255, 20, 81 and HSL 344°, 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

#FF1451#FF1451

HEX#FF1451

RGBrgb(255, 20, 81)

RGB (0–1)1, 0.0784, 0.3176

RGB percentages100%, 7.8%, 31.8%

HSLhsl(344.4, 100%, 53.9%)

HSV / HSBhsv(344.4, 92.2%, 100%)

CMYK0%, 92.2%, 68.2%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,716,881

CSS custom property--colour: #FF1451;

Brightness & contrast

Relative luminance0.22354WCAG 2.x, 0 is black and 1 is white

Perceived brightness142.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.47:1

Contrast with white3.84:1WCAG normal text: Fail

Contrast with black5.47:1WCAG normal text: AA

Greyscale equivalent#4A4A4A

Inverted#00EBAE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6A6451no red cones; affects about 1% of men; ΔE 84.6 from the original

Deuteranopia#A1924Ano green cones; the most common form, about 1% of men; ΔE 85 from the original

Tritanopia#FF0034no blue cones; rare, and affects men and women equally; ΔE 15.7 from the original

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

Contrast with white, large text3.84:1WCAG large text: AA

Contrast with black, large text5.47:1WCAG large text: AAA

Named colours

Crimson · ΔE 12.1 Tomato · ΔE 28 Firebrick · ΔE 29.4 Brown · ΔE 35 Red · ΔE 35.6 Indian red · ΔE 36.7

Nearest named CSS colourCrimson (#DC143C)ΔE 12.08, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#14FFC2

Analogous#FF14C7, #FF4C14

Triadic#51FF14, #1451FF

Split complementary#14FF4C, #14C7FF

Tetradic#C7FF14, #14FFC2, #4C14FF

Tints, shades & saturation

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

Lighter +40%#FFE0E8

Lighter +30%#FFADC2

Lighter +20%#FF7A9D

Lighter +10%#FF4777

Darker −10%#E0003A

Darker −20%#AD002D

Darker −30%#7A0020

Darker −40%#470012

More saturated +25%#FF1451

Less saturated −25%#E2315F

Channel breakdown

R255

G20

B81

Red255 (100%)

Green20 (7.8%)

Blue81 (31.8%)

Hue344.43°

Saturation (HSL)100%

Lightness53.92%

Dominant channelRed

Hex per channelR FF · G 14 · B 51

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF1451 (chemical formula)

Formula
27,585.096 g/mol
1452 atoms

FF1451 has a molar mass of 27,585.096 g/mol, made up of 1452 atoms across 1 element: 1452 × F.

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Molar mass

Molar mass27,585.096 g/mol

Total atoms per molecule1452

Distinct elements1

Mass of one molecule4.580613 × 10^-20 g

Molecules per gram2.1831139 × 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 × 1452)27,585.096 g/mol, 100%

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Elements in this formula

Fluorine

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