Recognised as Colour

#FFF73B

#FFF73B
Yellow
Light
Nearest: Yellow

#FFF73B is a yellow with RGB values 255, 247, 59 and HSL 58°, 100%, 62%. It is a light colour, so black text on it reaches 18.6:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#FFF73B#FFF73B

HEX#FFF73B

RGBrgb(255, 247, 59)

RGB (0–1)1, 0.9686, 0.2314

RGB percentages100%, 96.9%, 23.1%

HSLhsl(57.6, 100%, 61.6%)

HSV / HSBhsv(57.6, 76.9%, 100%)

CMYK0%, 3.1%, 76.9%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,774,971

CSS custom property--colour: #FFF73B;

Brightness & contrast

Relative luminance0.88097WCAG 2.x, 0 is black and 1 is white

Perceived brightness235.9 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 18.62:1

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

Contrast with black18.62:1WCAG normal text: AAA

Greyscale equivalent#EBEBEB

Inverted#0008C4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFED00no red cones; affects about 1% of men; ΔE 8.8 from the original

Deuteranopia#FFF44Bno green cones; the most common form, about 1% of men; ΔE 6.1 from the original

Tritanopia#FFE6D4no blue cones; rare, and affects men and women equally; ΔE 75.2 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 text18.62:1WCAG large text: AAA

Named colours

Yellow · ΔE 12 Gold · ΔE 17.3 Yellow green · ΔE 33.1 Green yellow · ΔE 36 Goldenrod · ΔE 38.1 Khaki · ΔE 39.7

Nearest named CSS colourYellow (#FFFF00)ΔE 12.02, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3B43FF

Analogous#FF953B, #A5FF3B

Triadic#3BFFF7, #F73BFF

Split complementary#3BA5FF, #953BFF

Tetradic#3BFF95, #3B43FF, #FF3BA5

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFDD4

Lighter +20%#FFFBA1

Lighter +10%#FFF96E

Darker −10%#FFF508

Darker −20%#D4CB00

Darker −30%#A19A00

Darker −40%#6E6A00

More saturated +25%#FFF73B

Less saturated −25%#E7E054

Channel breakdown

R255

G247

B59

Red255 (100%)

Green247 (96.9%)

Blue59 (23.1%)

Hue57.55°

Saturation (HSL)100%

Lightness61.57%

Dominant channelRed

Hex per channelR FF · G F7 · B 3B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FFF73B (chemical formula)

Formula
1,435.66 g/mol
76 atoms

FFF73B has a molar mass of 1,435.66 g/mol, made up of 76 atoms across 2 elements: 75 × F, 1 × B.

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Molar mass

Molar mass1,435.66 g/mol

Total atoms per molecule76

Distinct elements2

Mass of one molecule2.3839695 × 10^-21 g

Molecules per gram4.1946845 × 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

F99.2%

B0.8%

Fluorine (F × 75)1,424.85 g/mol, 99.247%

Boron (B)10.81 g/mol, 0.753%

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Elements in this formula

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