Recognised as Colour
#40B8AC
- #40B8AC
- Cyan
- Dark
- Nearest: Light seagreen
#40B8AC is a cyan with RGB values 64, 184, 172 and HSL 174°, 48%, 49%. It is a dark colour, so black text on it reaches 8.7:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.
Colour values
#40B8AC#40B8AC
HEX#40B8AC
RGBrgb(64, 184, 172)
RGB (0–1)0.251, 0.7216, 0.6745
RGB percentages25.1%, 72.2%, 67.5%
HSLhsl(174, 48.4%, 48.6%)
HSV / HSBhsv(174, 65.2%, 72.2%)
CMYK65.2%, 0%, 6.5%, 27.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,241,580
CSS custom property--colour: #40B8AC;
Brightness & contrast
Relative luminance0.3835WCAG 2.x, 0 is black and 1 is white
Perceived brightness156.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.67:1
Contrast with white2.42:1WCAG normal text: Fail
Contrast with black8.67:1WCAG normal text: AAA
Greyscale equivalent#9E9E9E
Inverted#BF4753
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.42:1WCAG large text: Fail
Contrast with black, large text8.67:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#B8404C
Analogous#40B870, #4088B8
Triadic#AC40B8, #B8AC40
Split complementary#B84088, #B87040
Tetradic#7040B8, #B8404C, #88B840
Tints, shades & saturation
Channel breakdown
R64
G184
B172
Red64 (25.1%)
Green184 (72.2%)
Blue172 (67.5%)
Hue174°
Saturation (HSL)48.39%
Lightness48.63%
Dominant channelGreen
Hex per channelR 40 · G B8 · B AC
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Harmonies
Similar named colours
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