Recognised as Colour

#FFF591

#FFF591
Yellow
Light
Nearest: Khaki

#FFF591 is a yellow with RGB values 255, 245, 145 and HSL 55°, 100%, 78%. It is a light colour, so black text on it reaches 18.7:1 contrast (AAA for normal text). The nearest named colour is Khaki.

Colour values

#FFF591#FFF591

HEX#FFF591

RGBrgb(255, 245, 145)

RGB (0–1)1, 0.9608, 0.5686

RGB percentages100%, 96.1%, 56.9%

HSLhsl(54.5, 100%, 78.4%)

HSV / HSBhsv(54.5, 43.1%, 100%)

CMYK0%, 3.9%, 43.1%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,774,545

CSS custom property--colour: #FFF591;

Brightness & contrast

Relative luminance0.88609WCAG 2.x, 0 is black and 1 is white

Perceived brightness238.9 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 18.72:1

Contrast with white1.12:1WCAG normal text: Fail

Contrast with black18.72:1WCAG normal text: AAA

Greyscale equivalent#F0F0F0

Inverted#000A6E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFEF89no red cones; affects about 1% of men; ΔE 3.3 from the original

Deuteranopia#FFF495no green cones; the most common form, about 1% of men; ΔE 2.4 from the original

Tritanopia#FFE9DDno blue cones; rare, and affects men and women equally; ΔE 43.6 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.12:1WCAG large text: Fail

Contrast with black, large text18.72:1WCAG large text: AAA

Named colours

Khaki · ΔE 6.7 Pale goldenrod · ΔE 18.9 Dark khaki · ΔE 24.2 Navajo white · ΔE 26.1 Moccasin · ΔE 26.3 Lemon chiffon · ΔE 27.5

Nearest named CSS colourKhaki (#F0E68C)ΔE 6.7, clearly different but related

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#919BFF

Analogous#FFBE91, #D2FF91

Triadic#91FFF5, #F591FF

Split complementary#91D2FF, #BE91FF

Tetradic#91FFBE, #919BFF, #FF91D2

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#FFFEF7

Lighter +10%#FFFAC4

Darker −10%#FFF05E

Darker −20%#FFEC2B

Darker −30%#F7E100

Darker −40%#C4B200

More saturated +25%#FFF591

Less saturated −25%#F1EA9F

Channel breakdown

R255

G245

B145

Red255 (100%)

Green245 (96.1%)

Blue145 (56.9%)

Hue54.55°

Saturation (HSL)100%

Lightness78.43%

Dominant channelRed

Hex per channelR FF · G F5 · B 91

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FFF591 (chemical formula)

Formula
11,265.814 g/mol
593 atoms

FFF591 has a molar mass of 11,265.814 g/mol, made up of 593 atoms across 1 element: 593 × F.

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Molar mass

Molar mass11,265.814 g/mol

Total atoms per molecule593

Distinct elements1

Mass of one molecule1.8707324 × 10^-20 g

Molecules per gram5.3454999 × 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

F100%

Fluorine (F × 593)11,265.814 g/mol, 100%

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Elements in this formula

Fluorine

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