Recognised as Colour

#FFCD15

#FFCD15
Yellow
Light
Nearest: Gold

#FFCD15 is a yellow with RGB values 255, 205, 21 and HSL 47°, 100%, 54%. It is a light colour, so black text on it reaches 14:1 contrast (AAA for normal text). The nearest named colour is Gold.

Colour values

#FFCD15#FFCD15

HEX#FFCD15

RGBrgb(255, 205, 21)

RGB (0–1)1, 0.8039, 0.0824

RGB percentages100%, 80.4%, 8.2%

HSLhsl(47.2, 100%, 54.1%)

HSV / HSBhsv(47.2, 91.8%, 100%)

CMYK0%, 19.6%, 91.8%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,764,181

CSS custom property--colour: #FFCD15;

Brightness & contrast

Relative luminance0.64977WCAG 2.x, 0 is black and 1 is white

Perceived brightness210.1 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 14:1

Contrast with white1.5:1WCAG normal text: Fail

Contrast with black14:1WCAG normal text: AAA

Greyscale equivalent#CACACA

Inverted#0032EA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#E6CB00no red cones; affects about 1% of men; ΔE 10.4 from the original

Deuteranopia#F2D928no green cones; the most common form, about 1% of men; ΔE 11.7 from the original

Tritanopia#FFBAAFno blue cones; rare, and affects men and women equally; ΔE 70.8 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.5:1WCAG large text: Fail

Contrast with black, large text14:1WCAG large text: AAA

Named colours

Gold · ΔE 7 Goldenrod · ΔE 20.6 Orange · ΔE 23.1 Yellow · ΔE 30.1 Dark goldenrod · ΔE 33.2 Dark orange · ΔE 37.5

Nearest named CSS colourGold (#FFD700)ΔE 7.01, clearly different but related

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1547FF

Analogous#FF5815, #BCFF15

Triadic#15FFCD, #CD15FF

Split complementary#15BCFF, #5815FF

Tetradic#15FF58, #1547FF, #FF15BC

Tints, shades & saturation

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

Lighter +40%#FFF9E1

Lighter +30%#FFEEAE

Lighter +20%#FFE37B

Lighter +10%#FFD848

Darker −10%#E1B100

Darker −20%#AE8900

Darker −30%#7B6100

Darker −40%#483900

More saturated +25%#FFCD15

Less saturated −25%#E2BC32

Channel breakdown

R255

G205

B21

Red255 (100%)

Green205 (80.4%)

Blue21 (8.2%)

Hue47.18°

Saturation (HSL)100%

Lightness54.12%

Dominant channelRed

Hex per channelR FF · G CD · B 15

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FFCd15 (chemical formula)

Formula
1,724.146 g/mol
17 atoms

FFCd15 has a molar mass of 1,724.146 g/mol, made up of 17 atoms across 2 elements: 2 × F, 15 × Cd.

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Molar mass

Molar mass1,724.146 g/mol

Total atoms per molecule17

Distinct elements2

Mass of one molecule2.8630118 × 10^-21 g

Molecules per gram3.4928253 × 10^20

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

F2.2%

Cd97.8%

Fluorine (F × 2)37.996 g/mol, 2.204%

Cadmium (Cd × 15)1,686.15 g/mol, 97.796%

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Elements in this formula

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