Recognised as Colour
#FEFF2F
- #FEFF2F
- Yellow
- Light
- Nearest: Yellow
#FEFF2F is a yellow with RGB values 254, 255, 47 and HSL 60°, 100%, 59%. It is a light colour, so black text on it reaches 19.6:1 contrast (AAA for normal text). The nearest named colour is Yellow.
Colour values
#FEFF2F#FEFF2F
HEX#FEFF2F
RGBrgb(254, 255, 47)
RGB (0–1)0.9961, 1, 0.1843
RGB percentages99.6%, 100%, 18.4%
HSLhsl(60.3, 100%, 59.2%)
HSV / HSBhsv(60.3, 81.6%, 100%)
CMYK0.4%, 0%, 81.6%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,711,471
CSS custom property--colour: #FEFF2F;
Brightness & contrast
Relative luminance0.92796WCAG 2.x, 0 is black and 1 is white
Perceived brightness240.2 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 19.56:1
Contrast with white1.07:1WCAG normal text: Fail
Contrast with black19.56:1WCAG normal text: AAA
Greyscale equivalent#F0F0F0
Inverted#0100D0
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.07:1WCAG large text: Fail
Contrast with black, large text19.56:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#302FFF
Analogous#FF982F, #96FF2F
Triadic#2FFEFF, #FF2FFE
Split complementary#2F96FF, #982FFF
Tetradic#2FFF98, #302FFF, #FF2F96
Tints, shades & saturation
Channel breakdown
R254
G255
B47
Red254 (99.6%)
Green255 (100%)
Blue47 (18.4%)
Hue60.29°
Saturation (HSL)100%
Lightness59.22%
Dominant channelGreen
Hex per channelR FE · G FF · B 2F
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Harmonies
Similar named colours
Also reads as
FeFF2F (chemical formula)
- Formula
- 131.837 g/mol
- 5 atoms
FeFF2F has a molar mass of 131.837 g/mol, made up of 5 atoms across 2 elements: 1 × Fe, 4 × F.
Molar mass
Molar mass131.837 g/mol
Total atoms per molecule5
Distinct elements2
Mass of one molecule2.1892049 × 10^-22 g
Molecules per gram4.5678685 × 10^21
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
Fe42.4%
F57.6%
Iron (Fe)55.845 g/mol, 42.359%
Fluorine (F × 4)75.992 g/mol, 57.641%
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