Recognised as Colour

#F24245

#F24245
Red
Dark
Nearest: Crimson

#F24245 is a red with RGB values 242, 66, 69 and HSL 359°, 87%, 60%. 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

#F24245#F24245

HEX#F24245

RGBrgb(242, 66, 69)

RGB (0–1)0.949, 0.2588, 0.2706

RGB percentages94.9%, 25.9%, 27.1%

HSLhsl(359, 87.1%, 60.4%)

HSV / HSBhsv(359, 72.7%, 94.9%)

CMYK0%, 72.7%, 71.5%, 5.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,876,677

CSS custom property--colour: #F24245;

Brightness & contrast

Relative luminance0.23203WCAG 2.x, 0 is black and 1 is white

Perceived brightness143.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.64:1

Contrast with white3.72:1WCAG normal text: Fail

Contrast with black5.64:1WCAG normal text: AA

Greyscale equivalent#686868

Inverted#0DBDBA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#766C43no red cones; affects about 1% of men; ΔE 71 from the original

Deuteranopia#A2923Fno green cones; the most common form, about 1% of men; ΔE 71.3 from the original

Tritanopia#FF0045no blue cones; rare, and affects men and women equally; ΔE 15.2 from the original

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

Contrast with white, large text3.72:1WCAG large text: AA

Contrast with black, large text5.64:1WCAG large text: AAA

Named colours

Crimson · ΔE 10.9 Tomato · ΔE 13.2 Firebrick · ΔE 19.3 Coral · ΔE 25.6 Brown · ΔE 25.8 Salmon · ΔE 26.2

Nearest named CSS colourCrimson (#DC143C)ΔE 10.92, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#42F2EF

Analogous#F2429D, #F29742

Triadic#45F242, #4245F2

Split complementary#42F297, #429DF2

Tetradic#9DF242, #42F2EF, #9742F2

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FCD1D2

Lighter +20%#F9A1A3

Lighter +10%#F57274

Darker −10%#EF1216

Darker −20%#C10D10

Darker −30%#910A0C

Darker −40%#610708

More saturated +25%#FF3538

Less saturated −25%#D95B5D

Channel breakdown

R242

G66

B69

Red242 (94.9%)

Green66 (25.9%)

Blue69 (27.1%)

Hue358.98°

Saturation (HSL)87.13%

Lightness60.39%

Dominant channelRed

Hex per channelR F2 · G 42 · B 45

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F24245 (chemical formula)

Formula
460,606.51 g/mol
24245 atoms

F24245 has a molar mass of 460,606.51 g/mol, made up of 24245 atoms across 1 element: 24245 × F.

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Molar mass

Molar mass460,606.51 g/mol

Total atoms per molecule24245

Distinct elements1

Mass of one molecule7.648551 × 10^-19 g

Molecules per gram1.3074372 × 10^18

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 × 24245)460,606.51 g/mol, 100%

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Elements in this formula

Fluorine

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