Recognised as Colour

#FFE13B

#FFE13B
Yellow
Light
Nearest: Gold

#FFE13B is a yellow with RGB values 255, 225, 59 and HSL 51°, 100%, 62%. 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

#FFE13B#FFE13B

HEX#FFE13B

RGBrgb(255, 225, 59)

RGB (0–1)1, 0.8824, 0.2314

RGB percentages100%, 88.2%, 23.1%

HSLhsl(50.8, 100%, 61.6%)

HSV / HSBhsv(50.8, 76.9%, 100%)

CMYK0%, 11.8%, 76.9%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,769,339

CSS custom property--colour: #FFE13B;

Brightness & contrast

Relative luminance0.75426WCAG 2.x, 0 is black and 1 is white

Perceived brightness222.6 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 16.09:1

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

Contrast with black16.09:1WCAG normal text: AAA

Greyscale equivalent#DBDBDB

Inverted#001EC4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#F8DB12no red cones; affects about 1% of men; ΔE 7.3 from the original

Deuteranopia#FFE647no green cones; the most common form, about 1% of men; ΔE 3.6 from the original

Tritanopia#FFD0C2no blue cones; rare, and affects men and women equally; ΔE 68.6 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 text16.09:1WCAG large text: AAA

Named colours

Gold · ΔE 9.8 Yellow · ΔE 23.6 Goldenrod · ΔE 25.6 Orange · ΔE 33.2 Khaki · ΔE 33.8 Yellow green · ΔE 36.7

Nearest named CSS colourGold (#FFD700)ΔE 9.75, clearly different but related

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3B59FF

Analogous#FF7F3B, #BBFF3B

Triadic#3BFFE1, #E13BFF

Split complementary#3BBBFF, #7F3BFF

Tetradic#3BFF7F, #3B59FF, #FF3BBB

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFF8D4

Lighter +20%#FFF1A1

Lighter +10%#FFE96E

Darker −10%#FFD908

Darker −20%#D4B400

Darker −30%#A18800

Darker −40%#6E5D00

More saturated +25%#FFE13B

Less saturated −25%#E7D054

Channel breakdown

R255

G225

B59

Red255 (100%)

Green225 (88.2%)

Blue59 (23.1%)

Hue50.82°

Saturation (HSL)100%

Lightness61.57%

Dominant channelRed

Hex per channelR FF · G E1 · B 3B

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

FFe13B (chemical formula)

Formula
755.793 g/mol
15 atoms

FFe13B has a molar mass of 755.793 g/mol, made up of 15 atoms across 3 elements: 1 × F, 13 × Fe, 1 × B.

Open this reading on its own page →

Molar mass

Molar mass755.793 g/mol

Total atoms per molecule15

Distinct elements3

Mass of one molecule1.2550238 × 10^-21 g

Molecules per gram7.9679764 × 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

F2.5%

Fe96.1%

B1.4%

Fluorine (F)18.998 g/mol, 2.514%

Iron (Fe × 13)725.985 g/mol, 96.056%

Boron (B)10.81 g/mol, 1.43%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Nerdulate something else

Nothing in mind? Surprise me · today’s page