Recognised as Colour

#FFE73B

#FFE73B
Yellow
Light
Nearest: Gold

#FFE73B is a yellow with RGB values 255, 231, 59 and HSL 53°, 100%, 62%. It is a light colour, so black text on it reaches 16.7:1 contrast (AAA for normal text). The nearest named colour is Gold.

Colour values

#FFE73B#FFE73B

HEX#FFE73B

RGBrgb(255, 231, 59)

RGB (0–1)1, 0.9059, 0.2314

RGB percentages100%, 90.6%, 23.1%

HSLhsl(52.7, 100%, 61.6%)

HSV / HSBhsv(52.7, 76.9%, 100%)

CMYK0%, 9.4%, 76.9%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,770,875

CSS custom property--colour: #FFE73B;

Brightness & contrast

Relative luminance0.78728WCAG 2.x, 0 is black and 1 is white

Perceived brightness226.2 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 16.75:1

Contrast with white1.25:1WCAG normal text: Fail

Contrast with black16.75:1WCAG normal text: AAA

Greyscale equivalent#E0E0E0

Inverted#0018C4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FDE00Cno red cones; affects about 1% of men; ΔE 8 from the original

Deuteranopia#FFEA48no green cones; the most common form, about 1% of men; ΔE 3.7 from the original

Tritanopia#FFD6C7no blue cones; rare, and affects men and women equally; ΔE 70.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.25:1WCAG large text: Fail

Contrast with black, large text16.75:1WCAG large text: AAA

Named colours

Gold · ΔE 10.8 Yellow · ΔE 20.2 Goldenrod · ΔE 29 Khaki · ΔE 35 Yellow green · ΔE 35.2 Orange · ΔE 36.6

Nearest named CSS colourGold (#FFD700)ΔE 10.79, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3B53FF

Analogous#FF853B, #B5FF3B

Triadic#3BFFE7, #E73BFF

Split complementary#3BB5FF, #853BFF

Tetradic#3BFF85, #3B53FF, #FF3BB5

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFAD4

Lighter +20%#FFF3A1

Lighter +10%#FFED6E

Darker −10%#FFE108

Darker −20%#D4BA00

Darker −30%#A18D00

Darker −40%#6E6100

More saturated +25%#FFE73B

Less saturated −25%#E7D554

Channel breakdown

R255

G231

B59

Red255 (100%)

Green231 (90.6%)

Blue59 (23.1%)

Hue52.65°

Saturation (HSL)100%

Lightness61.57%

Dominant channelRed

Hex per channelR FF · G E7 · B 3B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FFe73B (chemical formula)

Formula
4,106.493 g/mol
75 atoms

FFe73B has a molar mass of 4,106.493 g/mol, made up of 75 atoms across 3 elements: 1 × F, 73 × Fe, 1 × B.

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Molar mass

Molar mass4,106.493 g/mol

Total atoms per molecule75

Distinct elements3

Mass of one molecule6.8189921 × 10^-21 g

Molecules per gram1.4664924 × 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

F0.5%

Fe99.3%

B0.3%

Fluorine (F)18.998 g/mol, 0.463%

Iron (Fe × 73)4,076.685 g/mol, 99.274%

Boron (B)10.81 g/mol, 0.263%

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Elements in this formula

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