Recognised as Colour

#FF1224

#FF1224
Red
Dark
Nearest: Red

#FF1224 is a red with RGB values 255, 18, 36 and HSL 355°, 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 Red.

Colour values

#FF1224#FF1224

HEX#FF1224

RGBrgb(255, 18, 36)

RGB (0–1)1, 0.0706, 0.1412

RGB percentages100%, 7.1%, 14.1%

HSLhsl(355.4, 100%, 53.5%)

HSV / HSBhsv(355.4, 92.9%, 100%)

CMYK0%, 92.9%, 85.9%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,716,324

CSS custom property--colour: #FF1224;

Brightness & contrast

Relative luminance0.2182WCAG 2.x, 0 is black and 1 is white

Perceived brightness140.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.36:1

Contrast with white3.91:1WCAG normal text: Fail

Contrast with black5.36:1WCAG normal text: AA

Greyscale equivalent#464646

Inverted#00EDDB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6E6220no red cones; affects about 1% of men; ΔE 85.5 from the original

Deuteranopia#A39111no green cones; the most common form, about 1% of men; ΔE 85.2 from the original

Tritanopia#FF0020no blue cones; rare, and affects men and women equally; ΔE 2 from the original

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

Contrast with white, large text3.91:1WCAG large text: AA

Contrast with black, large text5.36:1WCAG large text: AAA

Named colours

Red · ΔE 11.5 Orange red · ΔE 17.8 Crimson · ΔE 24.6 Tomato · ΔE 24.7 Firebrick · ΔE 32.9 Coral · ΔE 37.3

Nearest named CSS colourRed (#FF0000)ΔE 11.52, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#12FFED

Analogous#FF129B, #FF7612

Triadic#24FF12, #1224FF

Split complementary#12FF77, #129BFF

Tetradic#9BFF12, #12FFED, #7612FF

Tints, shades & saturation

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

Lighter +40%#FFDEE1

Lighter +30%#FFABB1

Lighter +20%#FF7882

Lighter +10%#FF4553

Darker −10%#DE0011

Darker −20%#AB000D

Darker −30%#780009

Darker −40%#450005

More saturated +25%#FF1224

Less saturated −25%#E1303D

Channel breakdown

R255

G18

B36

Red255 (100%)

Green18 (7.1%)

Blue36 (14.1%)

Hue355.44°

Saturation (HSL)100%

Lightness53.53%

Dominant channelRed

Hex per channelR FF · G 12 · B 24

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF1224 (chemical formula)

Formula
23,272.55 g/mol
1225 atoms

FF1224 has a molar mass of 23,272.55 g/mol, made up of 1225 atoms across 1 element: 1225 × F.

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Molar mass

Molar mass23,272.55 g/mol

Total atoms per molecule1225

Distinct elements1

Mass of one molecule3.8644978 × 10^-20 g

Molecules per gram2.5876583 × 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 × 1225)23,272.55 g/mol, 100%

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Elements in this formula

Fluorine

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