Colour
#FFFF66
- #FFFF66
- Yellow
- Light
- Nearest: Yellow
#FFFF66 is a yellow with RGB values 255, 255, 102 and HSL 60°, 100%, 70%. It is a light colour, so black text on it reaches 19.7:1 contrast (AAA for normal text). The nearest named colour is Yellow.
Colour values
#FFFF66#FFFF66
HEX#FFFF66
HEX (short)#FF6
RGBrgb(255, 255, 102)
RGB (0–1)1, 1, 0.4
RGB percentages100%, 100%, 40%
HSLhsl(60, 100%, 70%)
HSV / HSBhsv(60, 60%, 100%)
CMYK0%, 0%, 60%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,777,062
CSS custom property--colour: #FFFF66;
Brightness & contrast
Relative luminance0.93739WCAG 2.x, 0 is black and 1 is white
Perceived brightness242.5 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 19.75:1
Contrast with white1.06:1WCAG normal text: Fail
Contrast with black19.75:1WCAG normal text: AAA
Greyscale equivalent#F4F4F4
Inverted#000099
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.06:1WCAG large text: Fail
Contrast with black, large text19.75:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#6666FF
Analogous#FFB366, #B3FF66
Triadic#66FFFF, #FF66FF
Split complementary#66B3FF, #B366FF
Tetradic#66FFB3, #6666FF, #FF66B3
Tints, shades & saturation
Channel breakdown
R255
G255
B102
Red255 (100%)
Green255 (100%)
Blue102 (40%)
Hue60°
Saturation (HSL)100%
Lightness70%
Dominant channelRed and Green
Hex per channelR FF · G FF · B 66
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Nerdulate something else
Nothing in mind? Surprise me · today’s page