Recognised as Colour

#FFF966

#FFF966
Yellow
Light
Nearest: Gold

#FFF966 is a yellow with RGB values 255, 249, 102 and HSL 58°, 100%, 70%. It is a light colour, so black text on it reaches 19:1 contrast (AAA for normal text). The nearest named colour is Gold.

Colour values

#FFF966#FFF966

HEX#FFF966

RGBrgb(255, 249, 102)

RGB (0–1)1, 0.9765, 0.4

RGB percentages100%, 97.6%, 40%

HSLhsl(57.6, 100%, 70%)

HSV / HSBhsv(57.6, 60%, 100%)

CMYK0%, 2.4%, 60%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,775,526

CSS custom property--colour: #FFF966;

Brightness & contrast

Relative luminance0.89971WCAG 2.x, 0 is black and 1 is white

Perceived brightness238.8 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 18.99:1

Contrast with white1.11:1WCAG normal text: Fail

Contrast with black18.99:1WCAG normal text: AAA

Greyscale equivalent#F0F0F0

Inverted#000699

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFF055no red cones; affects about 1% of men; ΔE 5.9 from the original

Deuteranopia#FFF66Fno green cones; the most common form, about 1% of men; ΔE 5.1 from the original

Tritanopia#FFEADAno blue cones; rare, and affects men and women equally; ΔE 62.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.11:1WCAG large text: Fail

Contrast with black, large text18.99:1WCAG large text: AAA

Named colours

Gold · ΔE 24.2 Khaki · ΔE 25.8 Yellow · ΔE 26 Yellow green · ΔE 29.8 Goldenrod · ΔE 34.8 Dark khaki · ΔE 38.1

Nearest named CSS colourGold (#FFD700)ΔE 24.25, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#666CFF

Analogous#FFAC66, #B9FF66

Triadic#66FFF9, #F966FF

Split complementary#66B9FF, #AC66FF

Tetradic#66FFAC, #666CFF, #FF66B9

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#FFFDCC

Lighter +10%#FFFB99

Darker −10%#FFF733

Darker −20%#FFF500

Darker −30%#CCC400

Darker −40%#999300

More saturated +25%#FFF966

Less saturated −25%#ECE779

Channel breakdown

R255

G249

B102

Red255 (100%)

Green249 (97.6%)

Blue102 (40%)

Hue57.65°

Saturation (HSL)100%

Lightness70%

Dominant channelRed

Hex per channelR FF · G F9 · B 66

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FFF966 (chemical formula)

Formula
18,390.064 g/mol
968 atoms

FFF966 has a molar mass of 18,390.064 g/mol, made up of 968 atoms across 1 element: 968 × F.

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Molar mass

Molar mass18,390.064 g/mol

Total atoms per molecule968

Distinct elements1

Mass of one molecule3.053742 × 10^-20 g

Molecules per gram3.2746709 × 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

F100%

Fluorine (F × 968)18,390.064 g/mol, 100%

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Elements in this formula

Fluorine

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