Recognised as Colour

#FEF454

#FEF454
Yellow
Light
Nearest: Gold

#FEF454 is a yellow with RGB values 254, 244, 84 and HSL 56°, 99%, 66%. It is a light colour, so black text on it reaches 18.3:1 contrast (AAA for normal text). The nearest named colour is Gold.

Colour values

#FEF454#FEF454

HEX#FEF454

RGBrgb(254, 244, 84)

RGB (0–1)0.9961, 0.9569, 0.3294

RGB percentages99.6%, 95.7%, 32.9%

HSLhsl(56.5, 98.8%, 66.3%)

HSV / HSBhsv(56.5, 66.9%, 99.6%)

CMYK0%, 3.9%, 66.9%, 0.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,708,692

CSS custom property--colour: #FEF454;

Brightness & contrast

Relative luminance0.86412WCAG 2.x, 0 is black and 1 is white

Perceived brightness234.6 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 18.28:1

Contrast with white1.15:1WCAG normal text: Fail

Contrast with black18.28:1WCAG normal text: AAA

Greyscale equivalent#EBEBEB

Inverted#010BAB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFEB3Cno red cones; affects about 1% of men; ΔE 7.4 from the original

Deuteranopia#FFF25Eno green cones; the most common form, about 1% of men; ΔE 4.7 from the original

Tritanopia#FFE4D4no blue cones; rare, and affects men and women equally; ΔE 67.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.15:1WCAG large text: Fail

Contrast with black, large text18.28:1WCAG large text: AAA

Named colours

Gold · ΔE 19.3 Yellow · ΔE 21.1 Khaki · ΔE 30.5 Yellow green · ΔE 30.6 Goldenrod · ΔE 33.6 Green yellow · ΔE 38.7

Nearest named CSS colourGold (#FFD700)ΔE 19.26, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#545EFE

Analogous#FE9F54, #B3FE54

Triadic#54FEF4, #F454FE

Split complementary#54B3FE, #9F54FE

Tetradic#54FE9F, #545EFE, #FE54B3

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFEEC

Lighter +20%#FFFBB9

Lighter +10%#FEF787

Darker −10%#FEF121

Darker −20%#EBDD01

Darker −30%#B8AD01

Darker −40%#857D01

More saturated +25%#FFF553

Less saturated −25%#E9E169

Channel breakdown

R254

G244

B84

Red254 (99.6%)

Green244 (95.7%)

Blue84 (32.9%)

Hue56.47°

Saturation (HSL)98.84%

Lightness66.27%

Dominant channelRed

Hex per channelR FE · G F4 · B 54

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FeF454 (chemical formula)

Formula
8,680.937 g/mol
455 atoms

FeF454 has a molar mass of 8,680.937 g/mol, made up of 455 atoms across 2 elements: 1 × Fe, 454 × F.

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Molar mass

Molar mass8,680.937 g/mol

Total atoms per molecule455

Distinct elements2

Mass of one molecule1.4415035 × 10^-20 g

Molecules per gram6.9372013 × 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

Fe0.6%

F99.4%

Iron (Fe)55.845 g/mol, 0.643%

Fluorine (F × 454)8,625.092 g/mol, 99.357%

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