Colour
#40ABBF
- #40ABBF
- Cyan
- Dark
- Nearest: Cadetblue
#40ABBF is a cyan with RGB values 64, 171, 191 and HSL 189°, 50%, 50%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Cadetblue.
Colour values
#40ABBF#40ABBF
HEX#40ABBF
RGBrgb(64, 171, 191)
RGB (0–1)0.251, 0.6706, 0.749
RGB percentages25.1%, 67.1%, 74.9%
HSLhsl(189.4, 49.8%, 50%)
HSV / HSBhsv(189.4, 66.5%, 74.9%)
CMYK66.5%, 10.5%, 0%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,238,271
CSS custom property--colour: #40ABBF;
Brightness & contrast
Relative luminance0.33977WCAG 2.x, 0 is black and 1 is white
Perceived brightness150.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.8:1
Contrast with white2.69:1WCAG normal text: Fail
Contrast with black7.8:1WCAG normal text: AAA
Greyscale equivalent#969696
Inverted#BF5440
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.69:1WCAG large text: Fail
Contrast with black, large text7.8:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#BF5440
Analogous#40BF94, #406BBF
Triadic#BF40AB, #ABBF40
Split complementary#BF406B, #BF9440
Tetradic#9440BF, #BF5440, #6BBF40
Tints, shades & saturation
Channel breakdown
R64
G171
B191
Red64 (25.1%)
Green171 (67.1%)
Blue191 (74.9%)
Hue189.45°
Saturation (HSL)49.8%
Lightness50%
Dominant channelBlue
Hex per channelR 40 · G AB · B BF
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