Recognised as Colour

#F2423C

#F2423C
Red
Dark
Nearest: Tomato

#F2423C is a red with RGB values 242, 66, 60 and HSL 2°, 87%, 59%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#F2423C#F2423C

HEX#F2423C

RGBrgb(242, 66, 60)

RGB (0–1)0.949, 0.2588, 0.2353

RGB percentages94.9%, 25.9%, 23.5%

HSLhsl(2, 87.5%, 59.2%)

HSV / HSBhsv(2, 75.2%, 94.9%)

CMYK0%, 72.7%, 75.2%, 5.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,876,668

CSS custom property--colour: #F2423C;

Brightness & contrast

Relative luminance0.231WCAG 2.x, 0 is black and 1 is white

Perceived brightness143.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.62:1

Contrast with white3.74:1WCAG normal text: Fail

Contrast with black5.62:1WCAG normal text: AA

Greyscale equivalent#676767

Inverted#0DBDC3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#776C39no red cones; affects about 1% of men; ΔE 71.1 from the original

Deuteranopia#A29235no green cones; the most common form, about 1% of men; ΔE 71.6 from the original

Tritanopia#FF0043no blue cones; rare, and affects men and women equally; ΔE 16.2 from the original

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

Contrast with white, large text3.74:1WCAG large text: AA

Contrast with black, large text5.62:1WCAG large text: AAA

Named colours

Tomato · ΔE 11 Crimson · ΔE 14.1 Firebrick · ΔE 20 Coral · ΔE 24.2 Orange red · ΔE 25.2 Red · ΔE 27.3

Nearest named CSS colourTomato (#FF6347)ΔE 11.01, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3CECF2

Analogous#F23C91, #F29D3C

Triadic#3CF242, #423CF2

Split complementary#3CF29D, #3C91F2

Tetradic#91F23C, #3CECF2, #9D3CF2

Tints, shades & saturation

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

Lighter +40%#FFFBFB

Lighter +30%#FCCDCB

Lighter +20%#F89F9C

Lighter +10%#F5706C

Darker −10%#EB1710

Darker −20%#BC120D

Darker −30%#8C0E09

Darker −40%#5C0906

More saturated +25%#FF362F

Less saturated −25%#D85A56

Channel breakdown

R242

G66

B60

Red242 (94.9%)

Green66 (25.9%)

Blue60 (23.5%)

Hue1.98°

Saturation (HSL)87.5%

Lightness59.22%

Dominant channelRed

Hex per channelR F2 · G 42 · B 3C

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F2423C (chemical formula)

Formula
46,044.165 g/mol
2424 atoms

F2423C has a molar mass of 46,044.165 g/mol, made up of 2424 atoms across 2 elements: 2423 × F, 1 × C.

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Molar mass

Molar mass46,044.165 g/mol

Total atoms per molecule2424

Distinct elements2

Mass of one molecule7.6458135 × 10^-20 g

Molecules per gram1.3079053 × 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%

C0%

Fluorine (F × 2423)46,032.154 g/mol, 99.974%

Carbon (C)12.011 g/mol, 0.026%

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