Recognised as Colour

#FFE665

#FFE665
Yellow
Light
Nearest: Khaki

#FFE665 is a yellow with RGB values 255, 230, 101 and HSL 50°, 100%, 70%. It is a light colour, so black text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Khaki.

Colour values

#FFE665#FFE665

HEX#FFE665

RGBrgb(255, 230, 101)

RGB (0–1)1, 0.902, 0.3961

RGB percentages100%, 90.2%, 39.6%

HSLhsl(50.3, 100%, 69.8%)

HSV / HSBhsv(50.3, 60.4%, 100%)

CMYK0%, 9.8%, 60.4%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,770,661

CSS custom property--colour: #FFE665;

Brightness & contrast

Relative luminance0.78793WCAG 2.x, 0 is black and 1 is white

Perceived brightness227.3 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 16.76:1

Contrast with white1.25:1WCAG normal text: Fail

Contrast with black16.76:1WCAG normal text: AAA

Greyscale equivalent#E2E2E2

Inverted#00199A

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FAE157no red cones; affects about 1% of men; ΔE 4.2 from the original

Deuteranopia#FFE96Bno green cones; the most common form, about 1% of men; ΔE 2.2 from the original

Tritanopia#FFD7CAno blue cones; rare, and affects men and women equally; ΔE 55.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.25:1WCAG large text: Fail

Contrast with black, large text16.76:1WCAG large text: AAA

Named colours

Khaki · ΔE 19.6 Gold · ΔE 23.6 Goldenrod · ΔE 25.5 Dark khaki · ΔE 30.8 Pale goldenrod · ΔE 33.4 Yellow · ΔE 34.3

Nearest named CSS colourKhaki (#F0E68C)ΔE 19.6, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#657EFF

Analogous#FF9965, #CBFF65

Triadic#65FFE6, #E665FF

Split complementary#65CBFF, #9965FF

Tetradic#65FF99, #657EFF, #FF65CB

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFE

Lighter +20%#FFF7CB

Lighter +10%#FFEE98

Darker −10%#FFDE32

Darker −20%#FED500

Darker −30%#CBAA00

Darker −40%#987F00

More saturated +25%#FFE665

Less saturated −25%#ECD978

Channel breakdown

R255

G230

B101

Red255 (100%)

Green230 (90.2%)

Blue101 (39.6%)

Hue50.26°

Saturation (HSL)100%

Lightness69.8%

Dominant channelRed

Hex per channelR FF · G E6 · B 65

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FFe665 (chemical formula)

Formula
37,155.923 g/mol
666 atoms

FFe665 has a molar mass of 37,155.923 g/mol, made up of 666 atoms across 2 elements: 1 × F, 665 × Fe.

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Molar mass

Molar mass37,155.923 g/mol

Total atoms per molecule666

Distinct elements2

Mass of one molecule6.1698862 × 10^-20 g

Molecules per gram1.6207754 × 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

F0.1%

Fe99.9%

Fluorine (F)18.998 g/mol, 0.051%

Iron (Fe × 665)37,136.925 g/mol, 99.949%

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Elements in this formula

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