Recognised as Colour
#EFE511
- #EFE511
- Yellow
- Light
- Nearest: Yellow
#EFE511 is a yellow with RGB values 239, 229, 17 and HSL 57°, 87%, 50%. It is a light colour, so black text on it reaches 15.9:1 contrast (AAA for normal text). The nearest named colour is Yellow.
Colour values
#EFE511#EFE511
HEX#EFE511
RGBrgb(239, 229, 17)
RGB (0–1)0.9373, 0.898, 0.0667
RGB percentages93.7%, 89.8%, 6.7%
HSLhsl(57.3, 87.4%, 50.2%)
HSV / HSBhsv(57.3, 92.9%, 93.7%)
CMYK0%, 4.2%, 92.9%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,721,745
CSS custom property--colour: #EFE511;
Brightness & contrast
Relative luminance0.7443WCAG 2.x, 0 is black and 1 is white
Perceived brightness218.8 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 15.89:1
Contrast with white1.32:1WCAG normal text: Fail
Contrast with black15.89:1WCAG normal text: AAA
Greyscale equivalent#D8D8D8
Inverted#101AEE
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 text15.89:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#111BEF
Analogous#EF7611, #8AEF11
Triadic#11EFE5, #E511EF
Split complementary#118AEF, #7611EF
Tetradic#11EF76, #111BEF, #EF118A
Tints, shades & saturation
Channel breakdown
R239
G229
B17
Red239 (93.7%)
Green229 (89.8%)
Blue17 (6.7%)
Hue57.3°
Saturation (HSL)87.4%
Lightness50.2%
Dominant channelRed
Hex per channelR EF · G E5 · B 11
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