Recognised as Colour

#FCF427

#FCF427
Yellow
Light
Nearest: Yellow

#FCF427 is a yellow with RGB values 252, 244, 39 and HSL 58°, 97%, 57%. It is a light colour, so black text on it reaches 18.1:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#FCF427#FCF427

HEX#FCF427

RGBrgb(252, 244, 39)

RGB (0–1)0.9882, 0.9569, 0.1529

RGB percentages98.8%, 95.7%, 15.3%

HSLhsl(57.7, 97.3%, 57.1%)

HSV / HSBhsv(57.7, 84.5%, 98.8%)

CMYK0%, 3.2%, 84.5%, 1.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,577,575

CSS custom property--colour: #FCF427;

Brightness & contrast

Relative luminance0.85543WCAG 2.x, 0 is black and 1 is white

Perceived brightness232.6 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 18.11:1

Contrast with white1.16:1WCAG normal text: Fail

Contrast with black18.11:1WCAG normal text: AAA

Greyscale equivalent#E7E7E7

Inverted#030BD8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFEA00no red cones; affects about 1% of men; ΔE 6.8 from the original

Deuteranopia#FFF13Dno green cones; the most common form, about 1% of men; ΔE 6.7 from the original

Tritanopia#FFE3D1no blue cones; rare, and affects men and women equally; ΔE 78.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.16:1WCAG large text: Fail

Contrast with black, large text18.11:1WCAG large text: AAA

Named colours

Yellow · ΔE 8.8 Gold · ΔE 16.7 Yellow green · ΔE 34.4 Green yellow · ΔE 36 Goldenrod · ΔE 39.3 Khaki · ΔE 43.4

Nearest named CSS colourYellow (#FFFF00)ΔE 8.84, clearly different but related

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#272FFC

Analogous#FC8927, #9AFC27

Triadic#27FCF4, #F427FC

Split complementary#279AFC, #8927FC

Tetradic#27FC89, #272FFC, #FC279A

Tints, shades & saturation

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

Lighter +40%#FFFEF0

Lighter +30%#FEFCBE

Lighter +20%#FDF98C

Lighter +10%#FDF759

Darker −10%#EDE403

Darker −20%#BAB403

Darker −30%#888302

Darker −40%#565301

More saturated +25%#FFF724

Less saturated −25%#E1DB42

Channel breakdown

R252

G244

B39

Red252 (98.8%)

Green244 (95.7%)

Blue39 (15.3%)

Hue57.75°

Saturation (HSL)97.26%

Lightness57.06%

Dominant channelRed

Hex per channelR FC · G F4 · B 27

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FCF427 (chemical formula)

Formula
8,143.155 g/mol
429 atoms

FCF427 has a molar mass of 8,143.155 g/mol, made up of 429 atoms across 2 elements: 428 × F, 1 × C.

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Molar mass

Molar mass8,143.155 g/mol

Total atoms per molecule429

Distinct elements2

Mass of one molecule1.3522027 × 10^-20 g

Molecules per gram7.3953409 × 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

F99.9%

C0.1%

Fluorine (F × 428)8,131.144 g/mol, 99.853%

Carbon (C)12.011 g/mol, 0.147%

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