Recognised as Colour
#FFDF37
- #FFDF37
- Yellow
- Light
- Nearest: Gold
#FFDF37 is a yellow with RGB values 255, 223, 55 and HSL 50°, 100%, 61%. It is a light colour, so black text on it reaches 15.9:1 contrast (AAA for normal text). The nearest named colour is Gold.
Colour values
#FFDF37#FFDF37
HEX#FFDF37
RGBrgb(255, 223, 55)
RGB (0–1)1, 0.8745, 0.2157
RGB percentages100%, 87.5%, 21.6%
HSLhsl(50.4, 100%, 60.8%)
HSV / HSBhsv(50.4, 78.4%, 100%)
CMYK0%, 12.5%, 78.4%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,768,823
CSS custom property--colour: #FFDF37;
Brightness & contrast
Relative luminance0.74311WCAG 2.x, 0 is black and 1 is white
Perceived brightness221.3 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.86:1
Contrast with white1.32:1WCAG normal text: Fail
Contrast with black15.86:1WCAG normal text: AAA
Greyscale equivalent#DADADA
Inverted#0020C8
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.32:1WCAG large text: Fail
Contrast with black, large text15.86:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3757FF
Analogous#FF7B37, #BBFF37
Triadic#37FFDF, #DF37FF
Split complementary#37BBFF, #7B37FF
Tetradic#37FF7B, #3757FF, #FF37BB
Tints, shades & saturation
Channel breakdown
R255
G223
B55
Red255 (100%)
Green223 (87.5%)
Blue55 (21.6%)
Hue50.4°
Saturation (HSL)100%
Lightness60.78%
Dominant channelRed
Hex per channelR FF · G DF · B 37
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