Recognised as Colour

#FBF215

#FBF215
Yellow
Light
Nearest: Yellow

#FBF215 is a yellow with RGB values 251, 242, 21 and HSL 58°, 97%, 53%. It is a light colour, so black text on it reaches 17.8:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#FBF215#FBF215

HEX#FBF215

RGBrgb(251, 242, 21)

RGB (0–1)0.9843, 0.949, 0.0824

RGB percentages98.4%, 94.9%, 8.2%

HSLhsl(57.7, 96.6%, 53.3%)

HSV / HSBhsv(57.7, 91.6%, 98.4%)

CMYK0%, 3.6%, 91.6%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,511,509

CSS custom property--colour: #FBF215;

Brightness & contrast

Relative luminance0.84068WCAG 2.x, 0 is black and 1 is white

Perceived brightness230.8 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 17.81:1

Contrast with white1.18:1WCAG normal text: Fail

Contrast with black17.81:1WCAG normal text: AAA

Greyscale equivalent#E4E4E4

Inverted#040DEA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFE800no red cones; affects about 1% of men; ΔE 6.8 from the original

Deuteranopia#FFF034no green cones; the most common form, about 1% of men; ΔE 6.8 from the original

Tritanopia#FFE1CFno blue cones; rare, and affects men and women equally; ΔE 81.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.18:1WCAG large text: Fail

Contrast with black, large text17.81:1WCAG large text: AAA

Named colours

Yellow · ΔE 7.6 Gold · ΔE 16.5 Yellow green · ΔE 35.8 Green yellow · ΔE 36.6 Goldenrod · ΔE 40 Khaki · ΔE 45.7

Nearest named CSS colourYellow (#FFFF00)ΔE 7.56, clearly different but related

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#151EFB

Analogous#FB7F15, #91FB15

Triadic#15FBF2, #F215FB

Split complementary#1591FB, #7F15FB

Tetradic#15FB7F, #151EFB, #FB1591

Tints, shades & saturation

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

Lighter +40%#FEFDDE

Lighter +30%#FEFAAB

Lighter +20%#FDF879

Lighter +10%#FCF547

Darker −10%#D9D104

Darker −20%#A7A103

Darker −30%#757102

Darker −40%#434001

More saturated +25%#FFF611

Less saturated −25%#DDD733

Channel breakdown

R251

G242

B21

Red251 (98.4%)

Green242 (94.9%)

Blue21 (8.2%)

Hue57.65°

Saturation (HSL)96.64%

Lightness53.33%

Dominant channelRed

Hex per channelR FB · G F2 · B 15

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FBF215 (chemical formula)

Formula
4,114.378 g/mol
217 atoms

FBF215 has a molar mass of 4,114.378 g/mol, made up of 217 atoms across 2 elements: 216 × F, 1 × B.

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Molar mass

Molar mass4,114.378 g/mol

Total atoms per molecule217

Distinct elements2

Mass of one molecule6.8320854 × 10^-21 g

Molecules per gram1.4636819 × 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

F99.7%

B0.3%

Fluorine (F × 216)4,103.568 g/mol, 99.737%

Boron (B)10.81 g/mol, 0.263%

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Elements in this formula

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