Recognised as Colour

#FCFC2B

#FCFC2B
Yellow
Light
Nearest: Yellow

#FCFC2B is a yellow with RGB values 252, 252, 43 and HSL 60°, 97%, 58%. It is a light colour, so black text on it reaches 19.1:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#FCFC2B#FCFC2B

HEX#FCFC2B

RGBrgb(252, 252, 43)

RGB (0–1)0.9882, 0.9882, 0.1686

RGB percentages98.8%, 98.8%, 16.9%

HSLhsl(60, 97.2%, 57.8%)

HSV / HSBhsv(60, 82.9%, 98.8%)

CMYK0%, 0%, 82.9%, 1.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,579,627

CSS custom property--colour: #FCFC2B;

Brightness & contrast

Relative luminance0.90491WCAG 2.x, 0 is black and 1 is white

Perceived brightness237.6 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 19.1:1

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

Contrast with black19.1:1WCAG normal text: AAA

Greyscale equivalent#EDEDED

Inverted#0303D4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFF100no red cones; affects about 1% of men; ΔE 7.4 from the original

Deuteranopia#FFF742no green cones; the most common form, about 1% of men; ΔE 8.1 from the original

Tritanopia#FFEBD8no blue cones; rare, and affects men and women equally; ΔE 80.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

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

Contrast with black, large text19.1:1WCAG large text: AAA

Named colours

Yellow · ΔE 6.2 Gold · ΔE 21 Green yellow · ΔE 32.6 Yellow green · ΔE 34 Goldenrod · ΔE 43.5 Khaki · ΔE 45.4

Nearest named CSS colourYellow (#FFFF00)ΔE 6.2, clearly different but related

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2B2BFC

Analogous#FC942B, #94FC2B

Triadic#2BFCFC, #FC2BFC

Split complementary#2B94FC, #942BFC

Tetradic#2BFC94, #2B2BFC, #FC2B94

Tints, shades & saturation

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

Lighter +40%#FFFFF4

Lighter +30%#FEFEC2

Lighter +20%#FDFD90

Lighter +10%#FDFD5D

Darker −10%#F1F103

Darker −20%#BEBE03

Darker −30%#8C8C02

Darker −40%#5A5A01

More saturated +25%#FFFF28

Less saturated −25%#E1E146

Channel breakdown

R252

G252

B43

Red252 (98.8%)

Green252 (98.8%)

Blue43 (16.9%)

Hue60°

Saturation (HSL)97.21%

Lightness57.84%

Dominant channelRed and Green

Hex per channelR FC · G FC · B 2B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FCFC2B (chemical formula)

Formula
84.839 g/mol
6 atoms

FCFC2B has a molar mass of 84.839 g/mol, made up of 6 atoms across 3 elements: 2 × F, 3 × C, 1 × B.

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Molar mass

Molar mass84.839 g/mol

Total atoms per molecule6

Distinct elements3

Mass of one molecule1.4087847 × 10^-22 g

Molecules per gram7.0983165 × 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

F44.8%

C42.5%

B12.7%

Fluorine (F × 2)37.996 g/mol, 44.786%

Carbon (C × 3)36.033 g/mol, 42.472%

Boron (B)10.81 g/mol, 12.742%

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