Recognised as Colour

#FEF718

#FEF718
Yellow
Light
Nearest: Yellow

#FEF718 is a yellow with RGB values 254, 247, 24 and HSL 58°, 99%, 55%. It is a light colour, so black text on it reaches 18.5:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#FEF718#FEF718

HEX#FEF718

RGBrgb(254, 247, 24)

RGB (0–1)0.9961, 0.9686, 0.0941

RGB percentages99.6%, 96.9%, 9.4%

HSLhsl(58.2, 99.1%, 54.5%)

HSV / HSBhsv(58.2, 90.6%, 99.6%)

CMYK0%, 2.8%, 90.6%, 0.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,709,400

CSS custom property--colour: #FEF718;

Brightness & contrast

Relative luminance0.87658WCAG 2.x, 0 is black and 1 is white

Perceived brightness234.9 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 18.53:1

Contrast with white1.13:1WCAG normal text: Fail

Contrast with black18.53:1WCAG normal text: AAA

Greyscale equivalent#E8E8E8

Inverted#0108E7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFED00no red cones; affects about 1% of men; ΔE 5.6 from the original

Deuteranopia#FFF436no green cones; the most common form, about 1% of men; ΔE 6.9 from the original

Tritanopia#FFE6D3no blue cones; rare, and affects men and women equally; ΔE 81.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.13:1WCAG large text: Fail

Contrast with black, large text18.53:1WCAG large text: AAA

Named colours

Yellow · ΔE 5.6 Gold · ΔE 18.3 Green yellow · ΔE 35.8 Yellow green · ΔE 36.5 Goldenrod · ΔE 42.1 Khaki · ΔE 46.9

Nearest named CSS colourYellow (#FFFF00)ΔE 5.6, clearly different but related

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#181FFE

Analogous#FE8418, #92FE18

Triadic#18FEF7, #F718FE

Split complementary#1892FE, #8418FE

Tetradic#18FE84, #181FFE, #FE1892

Tints, shades & saturation

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

Lighter +40%#FFFEE3

Lighter +30%#FFFCB0

Lighter +20%#FEFB7E

Lighter +10%#FEF94B

Darker −10%#E2DB01

Darker −20%#AFAA01

Darker −30%#7C7901

Darker −40%#4A4700

More saturated +25%#FFF817

Less saturated −25%#E1DC35

Channel breakdown

R254

G247

B24

Red254 (99.6%)

Green247 (96.9%)

Blue24 (9.4%)

Hue58.17°

Saturation (HSL)99.14%

Lightness54.51%

Dominant channelRed

Hex per channelR FE · G F7 · B 18

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FeF718 (chemical formula)

Formula
13,696.409 g/mol
719 atoms

FeF718 has a molar mass of 13,696.409 g/mol, made up of 719 atoms across 2 elements: 1 × Fe, 718 × F.

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Molar mass

Molar mass13,696.409 g/mol

Total atoms per molecule719

Distinct elements2

Mass of one molecule2.2743422 × 10^-20 g

Molecules per gram4.3968757 × 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

Fe0.4%

F99.6%

Iron (Fe)55.845 g/mol, 0.408%

Fluorine (F × 718)13,640.564 g/mol, 99.592%

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Elements in this formula

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