Recognised as Colour

#FFE138

#FFE138
Yellow
Light
Nearest: Gold

#FFE138 is a yellow with RGB values 255, 225, 56 and HSL 51°, 100%, 61%. It is a light colour, so black text on it reaches 16.1:1 contrast (AAA for normal text). The nearest named colour is Gold.

Colour values

#FFE138#FFE138

HEX#FFE138

RGBrgb(255, 225, 56)

RGB (0–1)1, 0.8824, 0.2196

RGB percentages100%, 88.2%, 22%

HSLhsl(51, 100%, 61%)

HSV / HSBhsv(51, 78%, 100%)

CMYK0%, 11.8%, 78%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,769,336

CSS custom property--colour: #FFE138;

Brightness & contrast

Relative luminance0.75396WCAG 2.x, 0 is black and 1 is white

Perceived brightness222.5 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 16.08:1

Contrast with white1.31:1WCAG normal text: Fail

Contrast with black16.08:1WCAG normal text: AAA

Greyscale equivalent#DBDBDB

Inverted#001EC7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#F8DB05no red cones; affects about 1% of men; ΔE 7.6 from the original

Deuteranopia#FFE645no green cones; the most common form, about 1% of men; ΔE 3.8 from the original

Tritanopia#FFD0C2no blue cones; rare, and affects men and women equally; ΔE 69.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.31:1WCAG large text: Fail

Contrast with black, large text16.08:1WCAG large text: AAA

Named colours

Gold · ΔE 9 Yellow · ΔE 22.9 Goldenrod · ΔE 26 Orange · ΔE 33.3 Khaki · ΔE 34.7 Yellow green · ΔE 36.9

Nearest named CSS colourGold (#FFD700)ΔE 9.02, clearly different but related

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3856FF

Analogous#FF7E38, #B9FF38

Triadic#38FFE1, #E138FF

Split complementary#38B9FF, #7E38FF

Tetradic#38FF7E, #3856FF, #FF38B9

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFF8D1

Lighter +20%#FFF09E

Lighter +10%#FFE96B

Darker −10%#FFD905

Darker −20%#D1B100

Darker −30%#9E8600

Darker −40%#6B5B00

More saturated +25%#FFE138

Less saturated −25%#E6D051

Channel breakdown

R255

G225

B56

Red255 (100%)

Green225 (88.2%)

Blue56 (22%)

Hue50.95°

Saturation (HSL)100%

Lightness60.98%

Dominant channelRed

Hex per channelR FF · G E1 · B 38

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FFe138 (chemical formula)

Formula
7,725.608 g/mol
139 atoms

FFe138 has a molar mass of 7,725.608 g/mol, made up of 139 atoms across 2 elements: 1 × F, 138 × Fe.

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Molar mass

Molar mass7,725.608 g/mol

Total atoms per molecule139

Distinct elements2

Mass of one molecule1.2828674 × 10^-20 g

Molecules per gram7.795038 × 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

F0.2%

Fe99.8%

Fluorine (F)18.998 g/mol, 0.246%

Iron (Fe × 138)7,706.61 g/mol, 99.754%

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Elements in this formula

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