Recognised as Colour

#F3DB40

#F3DB40
Yellow
Light
Nearest: Gold

#F3DB40 is a yellow with RGB values 243, 219, 64 and HSL 52°, 88%, 60%. It is a light colour, so black text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Gold.

Colour values

#F3DB40#F3DB40

HEX#F3DB40

RGBrgb(243, 219, 64)

RGB (0–1)0.9529, 0.8588, 0.251

RGB percentages95.3%, 85.9%, 25.1%

HSLhsl(52, 88.2%, 60.2%)

HSV / HSBhsv(52, 73.7%, 95.3%)

CMYK0%, 9.9%, 73.7%, 4.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,981,376

CSS custom property--colour: #F3DB40;

Brightness & contrast

Relative luminance0.70088WCAG 2.x, 0 is black and 1 is white

Perceived brightness215.1 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 15.02:1

Contrast with white1.4:1WCAG normal text: Fail

Contrast with black15.02:1WCAG normal text: AAA

Greyscale equivalent#D5D5D5

Inverted#0C24BF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#F0D522no red cones; affects about 1% of men; ΔE 6.9 from the original

Deuteranopia#F7DE4Bno green cones; the most common form, about 1% of men; ΔE 3 from the original

Tritanopia#FFCBBDno blue cones; rare, and affects men and women equally; ΔE 64.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.4:1WCAG large text: Fail

Contrast with black, large text15.02:1WCAG large text: AAA

Named colours

Gold · ΔE 14.1 Goldenrod · ΔE 23.6 Yellow · ΔE 26.5 Khaki · ΔE 29.5 Yellow green · ΔE 33 Orange · ΔE 34.2

Nearest named CSS colourGold (#FFD700)ΔE 14.11, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4058F3

Analogous#F38140, #B2F340

Triadic#40F3DB, #DB40F3

Split complementary#40B2F3, #8140F3

Tetradic#40F381, #4058F3, #F340B2

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FCF6D0

Lighter +20%#F9EDA0

Lighter +10%#F6E470

Darker −10%#F0D210

Darker −20%#C1A90C

Darker −30%#917F09

Darker −40%#615506

More saturated +25%#FFE434

Less saturated −25%#DAC859

Channel breakdown

R243

G219

B64

Red243 (95.3%)

Green219 (85.9%)

Blue64 (25.1%)

Hue51.96°

Saturation (HSL)88.18%

Lightness60.2%

Dominant channelRed

Hex per channelR F3 · G DB · B 40

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F3Db40 (chemical formula)

Formula
10,776.994 g/mol
43 atoms

F3Db40 has a molar mass of 10,776.994 g/mol, made up of 43 atoms across 2 elements: 3 × F, 40 × Db.

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Molar mass

Molar mass10,776.994 g/mol

Total atoms per molecule43

Distinct elements2

Mass of one molecule1.789562 × 10^-20 g

Molecules per gram5.5879596 × 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

F0.5%

Db99.5%

Fluorine (F × 3)56.994 g/mol, 0.529%

Dubnium (Db × 40)10,720 g/mol, 99.471%

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