Recognised as Colour

#FEFFF9

#FEFFF9
Yellow
Light
Nearest: White

#FEFFF9 is a yellow with RGB values 254, 255, 249 and HSL 70°, 100%, 99%. It is a light colour, so black text on it reaches 20.9:1 contrast (AAA for normal text). The nearest named colour is White.

Colour values

#FEFFF9#FEFFF9

HEX#FEFFF9

RGBrgb(254, 255, 249)

RGB (0–1)0.9961, 1, 0.9765

RGB percentages99.6%, 100%, 97.6%

HSLhsl(70, 100%, 98.8%)

HSV / HSBhsv(70, 2.4%, 100%)

CMYK0.4%, 0%, 2.4%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,711,673

CSS custom property--colour: #FEFFF9;

Brightness & contrast

Relative luminance0.9943WCAG 2.x, 0 is black and 1 is white

Perceived brightness254 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 20.89:1

Contrast with white1.01:1WCAG normal text: Fail

Contrast with black20.89:1WCAG normal text: AAA

Greyscale equivalent#FEFEFE

Inverted#010006

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFFEF9no red cones; affects about 1% of men; ΔE 0.9 from the original

Deuteranopia#FFFEF9no green cones; the most common form, about 1% of men; ΔE 0.9 from the original

Tritanopia#FFFEFDno blue cones; rare, and affects men and women equally; ΔE 2.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.01:1WCAG large text: Fail

Contrast with black, large text20.89:1WCAG large text: AAA

Named colours

White · ΔE 3.1 Mint cream · ΔE 3.2 Floral white · ΔE 3.3 Snow · ΔE 3.9 White smoke · ΔE 4.5 Ivory · ΔE 4.6

Nearest named CSS colourWhite (#FFFFFF)ΔE 3.08, a close match

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FAF9FF

Analogous#FFFDF9, #FBFFF9

Triadic#F9FEFF, #FFF9FE

Split complementary#F9FBFF, #FDF9FF

Tetradic#F9FFFD, #FAF9FF, #FFF9FB

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#FFFFFF

Lighter +10%#FFFFFF

Darker −10%#F6FFC6

Darker −20%#EDFF93

Darker −30%#E5FF60

Darker −40%#DCFF2D

More saturated +25%#FEFFF9

Less saturated −25%#FEFEFA

Channel breakdown

R254

G255

B249

Red254 (99.6%)

Green255 (100%)

Blue249 (97.6%)

Hue70°

Saturation (HSL)100%

Lightness98.82%

Dominant channelGreen

Hex per channelR FE · G FF · B F9

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FeFFF9 (chemical formula)

Formula
264.823 g/mol
12 atoms

FeFFF9 has a molar mass of 264.823 g/mol, made up of 12 atoms across 2 elements: 1 × Fe, 11 × F.

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Molar mass

Molar mass264.823 g/mol

Total atoms per molecule12

Distinct elements2

Mass of one molecule4.3974894 × 10^-22 g

Molecules per gram2.2740248 × 10^21

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

Fe21.1%

F78.9%

Iron (Fe)55.845 g/mol, 21.088%

Fluorine (F × 11)208.978 g/mol, 78.912%

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