Recognised as Colour

#FEF687

#FEF687
Yellow
Light
Nearest: Khaki

#FEF687 is a yellow with RGB values 254, 246, 135 and HSL 56°, 98%, 76%. It is a light colour, so black text on it reaches 18.7:1 contrast (AAA for normal text). The nearest named colour is Khaki.

Colour values

#FEF687#FEF687

HEX#FEF687

RGBrgb(254, 246, 135)

RGB (0–1)0.9961, 0.9647, 0.5294

RGB percentages99.6%, 96.5%, 52.9%

HSLhsl(56, 98.3%, 76.3%)

HSV / HSBhsv(56, 46.9%, 99.6%)

CMYK0%, 3.1%, 46.9%, 0.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,709,255

CSS custom property--colour: #FEF687;

Brightness & contrast

Relative luminance0.88732WCAG 2.x, 0 is black and 1 is white

Perceived brightness238.5 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 18.75:1

Contrast with white1.12:1WCAG normal text: Fail

Contrast with black18.75:1WCAG normal text: AAA

Greyscale equivalent#F0F0F0

Inverted#010978

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFEF7Dno red cones; affects about 1% of men; ΔE 4.3 from the original

Deuteranopia#FFF48Cno green cones; the most common form, about 1% of men; ΔE 3.4 from the original

Tritanopia#FFE9DCno blue cones; rare, and affects men and women equally; ΔE 48.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.12:1WCAG large text: Fail

Contrast with black, large text18.75:1WCAG large text: AAA

Named colours

Khaki · ΔE 10.8 Pale goldenrod · ΔE 23.9 Dark khaki · ΔE 26.7 Navajo white · ΔE 31 Moccasin · ΔE 31.4 Lemon chiffon · ΔE 32.5

Nearest named CSS colourKhaki (#F0E68C)ΔE 10.78, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#878FFE

Analogous#FEBB87, #CAFE87

Triadic#87FEF6, #F687FE

Split complementary#87CAFE, #BB87FE

Tetradic#87FEBB, #878FFE, #FE87CA

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#FFFEEC

Lighter +10%#FEFABA

Darker −10%#FEF254

Darker −20%#FDEE22

Darker −30%#EADA02

Darker −40%#B7AB02

More saturated +25%#FFF786

Less saturated −25%#EFE996

Channel breakdown

R254

G246

B135

Red254 (99.6%)

Green246 (96.5%)

Blue135 (52.9%)

Hue55.97°

Saturation (HSL)98.35%

Lightness76.27%

Dominant channelRed

Hex per channelR FE · G F6 · B 87

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FeF687 (chemical formula)

Formula
13,107.471 g/mol
688 atoms

FeF687 has a molar mass of 13,107.471 g/mol, made up of 688 atoms across 2 elements: 1 × Fe, 687 × F.

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Molar mass

Molar mass13,107.471 g/mol

Total atoms per molecule688

Distinct elements2

Mass of one molecule2.1765468 × 10^-20 g

Molecules per gram4.5944338 × 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

Fe0.4%

F99.6%

Iron (Fe)55.845 g/mol, 0.426%

Fluorine (F × 687)13,051.626 g/mol, 99.574%

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