Recognised as Colour

#F28181

#F28181
Red
Dark
Nearest: Light coral

#F28181 is a red with RGB values 242, 129, 129 and HSL 0°, 81%, 73%. It is a dark colour, so black text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Light coral.

Colour values

#F28181#F28181

HEX#F28181

RGBrgb(242, 129, 129)

RGB (0–1)0.949, 0.5059, 0.5059

RGB percentages94.9%, 50.6%, 50.6%

HSLhsl(0, 81.3%, 72.7%)

HSV / HSBhsv(0, 46.7%, 94.9%)

CMYK0%, 46.7%, 46.7%, 5.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,892,865

CSS custom property--colour: #F28181;

Brightness & contrast

Relative luminance0.36163WCAG 2.x, 0 is black and 1 is white

Perceived brightness170.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 8.23:1

Contrast with white2.55:1WCAG normal text: Fail

Contrast with black8.23:1WCAG normal text: AAA

Greyscale equivalent#999999

Inverted#0D7E7E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#9A9480no red cones; affects about 1% of men; ΔE 45.5 from the original

Deuteranopia#B6AB7Fno green cones; the most common form, about 1% of men; ΔE 46.4 from the original

Tritanopia#FF7282no blue cones; rare, and affects men and women equally; ΔE 12 from the original

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

Contrast with white, large text2.55:1WCAG large text: Fail

Contrast with black, large text8.23:1WCAG large text: AAA

Named colours

Light coral · ΔE 0.6 Salmon · ΔE 9.6 Indian red · ΔE 13.6 Dark salmon · ΔE 17.3 Pale violetred · ΔE 20.4 Light salmon · ΔE 20.5

Nearest named CSS colourLight coral (#F08080)ΔE 0.6, indistinguishable to the eye

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#81F2F2

Analogous#F281B9, #F2B981

Triadic#81F281, #8181F2

Split complementary#81F2B9, #81B9F2

Tetradic#B9F281, #81F2F2, #B981F2

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#FCDDDD

Lighter +10%#F7AFAF

Darker −10%#ED5353

Darker −20%#E82525

Darker −30%#C61414

Darker −40%#971010

More saturated +25%#FF7474

Less saturated −25%#E19292

Channel breakdown

R242

G129

B129

Red242 (94.9%)

Green129 (50.6%)

Blue129 (50.6%)

Hue0°

Saturation (HSL)81.29%

Lightness72.75%

Dominant channelRed

Hex per channelR F2 · G 81 · B 81

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F28181 (chemical formula)

Formula
535,382.638 g/mol
28181 atoms

F28181 has a molar mass of 535,382.638 g/mol, made up of 28181 atoms across 1 element: 28181 × F.

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Molar mass

Molar mass535,382.638 g/mol

Total atoms per molecule28181

Distinct elements1

Mass of one molecule8.8902379 × 10^-19 g

Molecules per gram1.1248293 × 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 × 28181)535,382.638 g/mol, 100%

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Elements in this formula

Fluorine

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