Recognised as Colour

#FBF237

#FBF237
Yellow
Light
Nearest: Yellow

#FBF237 is a yellow with RGB values 251, 242, 55 and HSL 57°, 96%, 60%. It is a light colour, so black text on it reaches 17.9:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#FBF237#FBF237

HEX#FBF237

RGBrgb(251, 242, 55)

RGB (0–1)0.9843, 0.949, 0.2157

RGB percentages98.4%, 94.9%, 21.6%

HSLhsl(57.2, 96.1%, 60%)

HSV / HSBhsv(57.2, 78.1%, 98.4%)

CMYK0%, 3.6%, 78.1%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,511,543

CSS custom property--colour: #FBF237;

Brightness & contrast

Relative luminance0.84289WCAG 2.x, 0 is black and 1 is white

Perceived brightness231.4 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 17.86:1

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

Contrast with black17.86:1WCAG normal text: AAA

Greyscale equivalent#E6E6E6

Inverted#040DC8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFE900no red cones; affects about 1% of men; ΔE 9.1 from the original

Deuteranopia#FFF047no green cones; the most common form, about 1% of men; ΔE 5.8 from the original

Tritanopia#FFE1D0no blue cones; rare, and affects men and women equally; ΔE 75 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 text17.86:1WCAG large text: AAA

Named colours

Yellow · ΔE 13 Gold · ΔE 16.1 Yellow green · ΔE 32.4 Goldenrod · ΔE 36.5 Green yellow · ΔE 36.5 Khaki · ΔE 39

Nearest named CSS colourYellow (#FFFF00)ΔE 13.04, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3740FB

Analogous#FB9037, #A2FB37

Triadic#37FBF2, #F237FB

Split complementary#37A2FB, #9037FB

Tetradic#37FB90, #3740FB, #FB37A2

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FEFCCD

Lighter +20%#FDF89B

Lighter +10%#FCF569

Darker −10%#FAEF05

Darker −20%#C8BF04

Darker −30%#968F03

Darker −40%#646002

More saturated +25%#FFF633

Less saturated −25%#E2DB51

Channel breakdown

R251

G242

B55

Red251 (98.4%)

Green242 (94.9%)

Blue55 (21.6%)

Hue57.24°

Saturation (HSL)96.08%

Lightness60%

Dominant channelRed

Hex per channelR FB · G F2 · B 37

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FBF237 (chemical formula)

Formula
4,532.334 g/mol
239 atoms

FBF237 has a molar mass of 4,532.334 g/mol, made up of 239 atoms across 2 elements: 238 × F, 1 × B.

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Molar mass

Molar mass4,532.334 g/mol

Total atoms per molecule239

Distinct elements2

Mass of one molecule7.5261177 × 10^-21 g

Molecules per gram1.3287063 × 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

F99.8%

B0.2%

Fluorine (F × 238)4,521.524 g/mol, 99.761%

Boron (B)10.81 g/mol, 0.239%

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