Recognised as Colour

#FCCC39

#FCCC39
Yellow
Light
Nearest: Gold

#FCCC39 is a yellow with RGB values 252, 204, 57 and HSL 45°, 97%, 61%. It is a light colour, so black text on it reaches 13.8:1 contrast (AAA for normal text). The nearest named colour is Gold.

Colour values

#FCCC39#FCCC39

HEX#FCCC39

RGBrgb(252, 204, 57)

RGB (0–1)0.9882, 0.8, 0.2235

RGB percentages98.8%, 80%, 22.4%

HSLhsl(45.2, 97%, 60.6%)

HSV / HSBhsv(45.2, 77.4%, 98.8%)

CMYK0%, 19%, 77.4%, 1.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,567,353

CSS custom property--colour: #FCCC39;

Brightness & contrast

Relative luminance0.64177WCAG 2.x, 0 is black and 1 is white

Perceived brightness209.3 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 13.84:1

Contrast with white1.52:1WCAG normal text: Fail

Contrast with black13.84:1WCAG normal text: AAA

Greyscale equivalent#CCCCCC

Inverted#0333C6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#E4CA1Ano red cones; affects about 1% of men; ΔE 11.4 from the original

Deuteranopia#F0D742no green cones; the most common form, about 1% of men; ΔE 10.6 from the original

Tritanopia#FFBAB0no blue cones; rare, and affects men and women equally; ΔE 62.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.52:1WCAG large text: Fail

Contrast with black, large text13.84:1WCAG large text: AAA

Named colours

Gold · ΔE 14.4 Goldenrod · ΔE 15.2 Orange · ΔE 22.9 Dark goldenrod · ΔE 28.1 Khaki · ΔE 32.3 Yellow · ΔE 34.8

Nearest named CSS colourGold (#FFD700)ΔE 14.37, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3969FC

Analogous#FC6B39, #CBFC39

Triadic#39FCCC, #CC39FC

Split complementary#39CAFC, #6B39FC

Tetradic#39FC6B, #3969FC, #FC39CA

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FEF3D0

Lighter +20%#FEE69D

Lighter +10%#FDD96B

Darker −10%#FBBF07

Darker −20%#CC9A03

Darker −30%#9A7402

Darker −40%#674E02

More saturated +25%#FFCE36

Less saturated −25%#E3BF52

Channel breakdown

R252

G204

B57

Red252 (98.8%)

Green204 (80%)

Blue57 (22.4%)

Hue45.23°

Saturation (HSL)97.01%

Lightness60.59%

Dominant channelRed

Hex per channelR FC · G CC · B 39

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FCCC39 (chemical formula)

Formula
511.449 g/mol
42 atoms

FCCC39 has a molar mass of 511.449 g/mol, made up of 42 atoms across 2 elements: 1 × F, 41 × C.

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Molar mass

Molar mass511.449 g/mol

Total atoms per molecule42

Distinct elements2

Mass of one molecule8.4928105 × 10^-22 g

Molecules per gram1.1774665 × 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

F3.7%

C96.3%

Fluorine (F)18.998 g/mol, 3.715%

Carbon (C × 41)492.451 g/mol, 96.285%

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