Recognised as Colour

#FBF371

#FBF371
Yellow
Light
Nearest: Khaki

#FBF371 is a yellow with RGB values 251, 243, 113 and HSL 57°, 95%, 71%. It is a light colour, so black text on it reaches 18.2:1 contrast (AAA for normal text). The nearest named colour is Khaki.

Colour values

#FBF371#FBF371

HEX#FBF371

RGBrgb(251, 243, 113)

RGB (0–1)0.9843, 0.9529, 0.4431

RGB percentages98.4%, 95.3%, 44.3%

HSLhsl(56.5, 94.5%, 71.4%)

HSV / HSBhsv(56.5, 55%, 98.4%)

CMYK0%, 3.2%, 55%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,511,857

CSS custom property--colour: #FBF371;

Brightness & contrast

Relative luminance0.85803WCAG 2.x, 0 is black and 1 is white

Perceived brightness234.4 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 18.16:1

Contrast with white1.16:1WCAG normal text: Fail

Contrast with black18.16:1WCAG normal text: AAA

Greyscale equivalent#EBEBEB

Inverted#040C8E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFEB64no red cones; affects about 1% of men; ΔE 6.2 from the original

Deuteranopia#FFF178no green cones; the most common form, about 1% of men; ΔE 4.5 from the original

Tritanopia#FFE5D6no blue cones; rare, and affects men and women equally; ΔE 55.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.16:1WCAG large text: Fail

Contrast with black, large text18.16:1WCAG large text: AAA

Named colours

Khaki · ΔE 18.5 Gold · ΔE 28.2 Yellow green · ΔE 30.5 Dark khaki · ΔE 31.5 Pale goldenrod · ΔE 32.3 Goldenrod · ΔE 32.7

Nearest named CSS colourKhaki (#F0E68C)ΔE 18.5, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#7179FB

Analogous#FBAE71, #BEFB71

Triadic#71FBF3, #F371FB

Split complementary#71BEFB, #AE71FB

Tetradic#71FBAE, #7179FB, #FB71BE

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#FEFBD4

Lighter +10%#FCF7A3

Darker −10%#FAEF3F

Darker −20%#F8EB0E

Darker −30%#CDC206

Darker −40%#9C9304

More saturated +25%#FFF76D

Less saturated −25%#E9E383

Channel breakdown

R251

G243

B113

Red251 (98.4%)

Green243 (95.3%)

Blue113 (44.3%)

Hue56.52°

Saturation (HSL)94.52%

Lightness71.37%

Dominant channelRed

Hex per channelR FB · G F3 · B 71

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FBF371 (chemical formula)

Formula
7,078.066 g/mol
373 atoms

FBF371 has a molar mass of 7,078.066 g/mol, made up of 373 atoms across 2 elements: 372 × F, 1 × B.

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Molar mass

Molar mass7,078.066 g/mol

Total atoms per molecule373

Distinct elements2

Mass of one molecule1.1753405 × 10^-20 g

Molecules per gram8.5081727 × 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

F99.8%

B0.2%

Fluorine (F × 372)7,067.256 g/mol, 99.847%

Boron (B)10.81 g/mol, 0.153%

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