Recognised as Colour

#FEFF52

#FEFF52
Yellow
Light
Nearest: Yellow

#FEFF52 is a yellow with RGB values 254, 255, 82 and HSL 60°, 100%, 66%. It is a light colour, so black text on it reaches 19.6:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#FEFF52#FEFF52

HEX#FEFF52

RGBrgb(254, 255, 82)

RGB (0–1)0.9961, 1, 0.3216

RGB percentages99.6%, 100%, 32.2%

HSLhsl(60.3, 100%, 66.1%)

HSV / HSBhsv(60.3, 67.8%, 100%)

CMYK0.4%, 0%, 67.8%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,711,506

CSS custom property--colour: #FEFF52;

Brightness & contrast

Relative luminance0.932WCAG 2.x, 0 is black and 1 is white

Perceived brightness241.3 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 19.64:1

Contrast with white1.07:1WCAG normal text: Fail

Contrast with black19.64:1WCAG normal text: AAA

Greyscale equivalent#F2F2F2

Inverted#0100AD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFF436no red cones; affects about 1% of men; ΔE 8.1 from the original

Deuteranopia#FFFA5Eno green cones; the most common form, about 1% of men; ΔE 6.7 from the original

Tritanopia#FFEFDDno blue cones; rare, and affects men and women equally; ΔE 71.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.07:1WCAG large text: Fail

Contrast with black, large text19.64:1WCAG large text: AAA

Named colours

Yellow · ΔE 16.3 Gold · ΔE 22.6 Yellow green · ΔE 29.9 Green yellow · ΔE 33.1 Khaki · ΔE 35.7 Goldenrod · ΔE 40

Nearest named CSS colourYellow (#FFFF00)ΔE 16.29, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#5352FF

Analogous#FFA952, #A8FF52

Triadic#52FEFF, #FF52FE

Split complementary#52A7FF, #AA52FF

Tetradic#52FFA9, #5352FF, #FF52A7

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFEB

Lighter +20%#FFFFB8

Lighter +10%#FEFF85

Darker −10%#FEFF1F

Darker −20%#EAEB00

Darker −30%#B7B800

Darker −40%#848500

More saturated +25%#FEFF52

Less saturated −25%#E9E968

Channel breakdown

R254

G255

B82

Red254 (99.6%)

Green255 (100%)

Blue82 (32.2%)

Hue60.35°

Saturation (HSL)100%

Lightness66.08%

Dominant channelGreen

Hex per channelR FE · G FF · B 52

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FeFF52 (chemical formula)

Formula
1,062.739 g/mol
54 atoms

FeFF52 has a molar mass of 1,062.739 g/mol, made up of 54 atoms across 2 elements: 1 × Fe, 53 × F.

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Molar mass

Molar mass1,062.739 g/mol

Total atoms per molecule54

Distinct elements2

Mass of one molecule1.7647196 × 10^-21 g

Molecules per gram5.6666225 × 10^20

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

Fe5.3%

F94.7%

Iron (Fe)55.845 g/mol, 5.255%

Fluorine (F × 53)1,006.894 g/mol, 94.745%

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