Recognised as Colour
#40DFAD
- #40DFAD
- Cyan
- Light
- Nearest: Aquamarine
#40DFAD is a cyan with RGB values 64, 223, 173 and HSL 161°, 71%, 56%. It is a light colour, so black text on it reaches 12.4:1 contrast (AAA for normal text). The nearest named colour is Aquamarine.
Colour values
#40DFAD#40DFAD
HEX#40DFAD
RGBrgb(64, 223, 173)
RGB (0–1)0.251, 0.8745, 0.6784
RGB percentages25.1%, 87.5%, 67.8%
HSLhsl(161.1, 71.3%, 56.3%)
HSV / HSBhsv(161.1, 71.3%, 87.5%)
CMYK71.3%, 0%, 22.4%, 12.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,251,565
CSS custom property--colour: #40DFAD;
Brightness & contrast
Relative luminance0.56882WCAG 2.x, 0 is black and 1 is white
Perceived brightness183.9 of 255ITU-R BT.601 weighting
Light or darkLight
Best text colour on this backgroundBlackcontrast 12.38:1
Contrast with white1.7:1WCAG normal text: Fail
Contrast with black12.38:1WCAG normal text: AAA
Greyscale equivalent#BABABA
Inverted#BF2052
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text1.7:1WCAG large text: Fail
Contrast with black, large text12.38:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#DF4072
Analogous#40DF5E, #40C1DF
Triadic#AD40DF, #DFAD40
Split complementary#DF40C1, #DF5E40
Tetradic#5E40DF, #DF4072, #C1DF40
Tints, shades & saturation
Channel breakdown
R64
G223
B173
Red64 (25.1%)
Green223 (87.5%)
Blue173 (67.8%)
Hue161.13°
Saturation (HSL)71.3%
Lightness56.27%
Dominant channelGreen
Hex per channelR 40 · G DF · B AD
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