Recognised as Colour

#FFF904

#FFF904
Yellow
Light
Nearest: Yellow

#FFF904 is a yellow with RGB values 255, 249, 4 and HSL 59°, 100%, 51%. It is a light colour, so black text on it reaches 18.8:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#FFF904#FFF904

HEX#FFF904

RGBrgb(255, 249, 4)

RGB (0–1)1, 0.9765, 0.0157

RGB percentages100%, 97.6%, 1.6%

HSLhsl(58.6, 100%, 50.8%)

HSV / HSBhsv(58.6, 98.4%, 100%)

CMYK0%, 2.4%, 98.4%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,775,428

CSS custom property--colour: #FFF904;

Brightness & contrast

Relative luminance0.8902WCAG 2.x, 0 is black and 1 is white

Perceived brightness236.3 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 18.8:1

Contrast with white1.12:1WCAG normal text: Fail

Contrast with black18.8:1WCAG normal text: AAA

Greyscale equivalent#E9E9E9

Inverted#0006FB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFEF00no red cones; affects about 1% of men; ΔE 5.7 from the original

Deuteranopia#FFF530no green cones; the most common form, about 1% of men; ΔE 7.5 from the original

Tritanopia#FFE8D4no blue cones; rare, and affects men and women equally; ΔE 83.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.12:1WCAG large text: Fail

Contrast with black, large text18.8:1WCAG large text: AAA

Named colours

Yellow · ΔE 3.6 Gold · ΔE 19.8 Green yellow · ΔE 35.8 Yellow green · ΔE 37.9 Goldenrod · ΔE 44.1 Khaki · ΔE 49.3

Nearest named CSS colourYellow (#FFFF00)ΔE 3.57, a close match

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#040AFF

Analogous#FF7C04, #87FF04

Triadic#04FFF9, #F904FF

Split complementary#0487FF, #7C04FF

Tetradic#04FF7C, #040AFF, #FF0487

Tints, shades & saturation

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

Lighter +40%#FFFED0

Lighter +30%#FFFD9D

Lighter +20%#FFFB6A

Lighter +10%#FFFA37

Darker −10%#D0CB00

Darker −20%#9D9900

Darker −30%#6A6700

Darker −40%#373600

More saturated +25%#FFF904

Less saturated −25%#E0DB23

Channel breakdown

R255

G249

Red255 (100%)

Green249 (97.6%)

Blue4 (1.6%)

Hue58.57°

Saturation (HSL)100%

Lightness50.78%

Dominant channelRed

Hex per channelR FF · G F9 · B 04

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

FFF904 (chemical formula)

Formula
17,212.188 g/mol
906 atoms

FFF904 has a molar mass of 17,212.188 g/mol, made up of 906 atoms across 1 element: 906 × F.

Open this reading on its own page →

Molar mass

Molar mass17,212.188 g/mol

Total atoms per molecule906

Distinct elements1

Mass of one molecule2.8581511 × 10^-20 g

Molecules per gram3.4987654 × 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 × 906)17,212.188 g/mol, 100%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Fluorine

Nerdulate something else

Nothing in mind? Surprise me · today’s page