Colour
#378A97
- #378A97
- Cyan
- Dark
- Nearest: Cadetblue
#378A97 is a cyan with RGB values 55, 138, 151 and HSL 188°, 47%, 40%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Cadetblue.
Colour values
#378A97#378A97
HEX#378A97
RGBrgb(55, 138, 151)
RGB (0–1)0.2157, 0.5412, 0.5922
RGB percentages21.6%, 54.1%, 59.2%
HSLhsl(188.1, 46.6%, 40.4%)
HSV / HSBhsv(188.1, 63.6%, 59.2%)
CMYK63.6%, 8.6%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,639,959
CSS custom property--colour: #378A97;
Brightness & contrast
Relative luminance0.21224WCAG 2.x, 0 is black and 1 is white
Perceived brightness121.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.24:1
Contrast with white4:1WCAG normal text: Fail
Contrast with black5.24:1WCAG normal text: AA
Greyscale equivalent#797979
Inverted#C87568
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4:1WCAG large text: AA
Contrast with black, large text5.24:1WCAG large text: AAA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#974437
Analogous#379774, #375A97
Triadic#97378A, #8A9737
Split complementary#97375A, #977437
Tetradic#743797, #974437, #5A9737
Tints, shades & saturation
Channel breakdown
R55
G138
B151
Red55 (21.6%)
Green138 (54.1%)
Blue151 (59.2%)
Hue188.13°
Saturation (HSL)46.6%
Lightness40.39%
Dominant channelBlue
Hex per channelR 37 · G 8A · B 97
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