Recognised as Colour

#FBE557

#FBE557
Yellow
Light
Nearest: Gold

#FBE557 is a yellow with RGB values 251, 229, 87 and HSL 52°, 95%, 66%. It is a light colour, so black text on it reaches 16.4:1 contrast (AAA for normal text). The nearest named colour is Gold.

Colour values

#FBE557#FBE557

HEX#FBE557

RGBrgb(251, 229, 87)

RGB (0–1)0.9843, 0.898, 0.3412

RGB percentages98.4%, 89.8%, 34.1%

HSLhsl(52, 95.3%, 66.3%)

HSV / HSBhsv(52, 65.3%, 98.4%)

CMYK0%, 8.8%, 65.3%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,508,247

CSS custom property--colour: #FBE557;

Brightness & contrast

Relative luminance0.77236WCAG 2.x, 0 is black and 1 is white

Perceived brightness224.7 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 16.45:1

Contrast with white1.28:1WCAG normal text: Fail

Contrast with black16.45:1WCAG normal text: AAA

Greyscale equivalent#DFDFDF

Inverted#041AA8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FADF45no red cones; affects about 1% of men; ΔE 5.6 from the original

Deuteranopia#FFE75Fno green cones; the most common form, about 1% of men; ΔE 2.6 from the original

Tritanopia#FFD5C8no blue cones; rare, and affects men and women equally; ΔE 61.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.28:1WCAG large text: Fail

Contrast with black, large text16.45:1WCAG large text: AAA

Named colours

Gold · ΔE 19.2 Khaki · ΔE 24.4 Goldenrod · ΔE 25.8 Yellow · ΔE 29.2 Yellow green · ΔE 32.9 Dark khaki · ΔE 34.5

Nearest named CSS colourGold (#FFD700)ΔE 19.22, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#576DFB

Analogous#FB9357, #BFFB57

Triadic#57FBE5, #E557FB

Split complementary#57BFFB, #9357FB

Tetradic#57FB93, #576DFB, #FB57BF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFCEC

Lighter +20%#FDF4BB

Lighter +10%#FCED89

Darker −10%#FADD25

Darker −20%#E7C805

Darker −30%#B59D04

Darker −40%#837203

More saturated +25%#FFE853

Less saturated −25%#E5D56C

Channel breakdown

R251

G229

B87

Red251 (98.4%)

Green229 (89.8%)

Blue87 (34.1%)

Hue51.95°

Saturation (HSL)95.35%

Lightness66.27%

Dominant channelRed

Hex per channelR FB · G E5 · B 57

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FBe557 (chemical formula)

Formula
5,038.7934 g/mol
558 atoms

FBe557 has a molar mass of 5,038.7934 g/mol, made up of 558 atoms across 2 elements: 1 × F, 557 × Be.

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Molar mass

Molar mass5,038.7934 g/mol

Total atoms per molecule558

Distinct elements2

Mass of one molecule8.3671133 × 10^-21 g

Molecules per gram1.1951553 × 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

F0.4%

Be99.6%

Fluorine (F)18.998 g/mol, 0.377%

Beryllium (Be × 557)5,019.7954 g/mol, 99.623%

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