Colour

#FFFF11

#FFFF11
Yellow
Light
Nearest: Yellow

#FFFF11 is a yellow with RGB values 255, 255, 17 and HSL 60°, 100%, 53%. It is a light colour, so black text on it reaches 19.6:1 contrast (AAA for normal text). The nearest named colour is Yellow.

Colour values

#FFFF11#FFFF11

HEX#FFFF11

HEX (short)#FF1

RGBrgb(255, 255, 17)

RGB (0–1)1, 1, 0.0667

RGB percentages100%, 100%, 6.7%

HSLhsl(60, 100%, 53.3%)

HSV / HSBhsv(60, 93.3%, 100%)

CMYK0%, 0%, 93.3%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,776,977

CSS custom property--colour: #FFFF11;

Brightness & contrast

Relative luminance0.9282WCAG 2.x, 0 is black and 1 is white

Perceived brightness240.1 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 19.56:1

Contrast with white1.07:1WCAG normal text: Fail

Contrast with black19.56:1WCAG normal text: AAA

Greyscale equivalent#EEEEEE

Inverted#0000EE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FFF400no red cones; affects about 1% of men; ΔE 5.9 from the original

Deuteranopia#FFFA36no green cones; the most common form, about 1% of men; ΔE 8.3 from the original

Tritanopia#FFEEDAno blue cones; rare, and affects men and women equally; ΔE 85 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.07:1WCAG large text: Fail

Contrast with black, large text19.56:1WCAG large text: AAA

Named colours

Yellow · ΔE 1.3 Gold · ΔE 22.8 Green yellow · ΔE 33.5 Yellow green · ΔE 37.5 Goldenrod · ΔE 46.8 Chartreuse · ΔE 47.8

Nearest named CSS colourYellow (#FFFF00)ΔE 1.25, below the just-noticeable difference

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1111FF

Analogous#FF8811, #88FF11

Triadic#11FFFF, #FF11FF

Split complementary#1188FF, #8811FF

Tetradic#11FF88, #1111FF, #FF1188

Tints, shades & saturation

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

Lighter +40%#FFFFDD

Lighter +30%#FFFFAA

Lighter +20%#FFFF77

Lighter +10%#FFFF44

Darker −10%#DDDD00

Darker −20%#AAAA00

Darker −30%#777700

Darker −40%#444400

More saturated +25%#FFFF11

Less saturated −25%#E1E12F

Channel breakdown

R255

G255

B17

Red255 (100%)

Green255 (100%)

Blue17 (6.7%)

Hue60°

Saturation (HSL)100%

Lightness53.33%

Dominant channelRed and Green

Hex per channelR FF · G FF · B 11

Keep nerding

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#FFFF11

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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