Colour
#377B83
- #377B83
- Cyan
- Dark
- Nearest: Teal
#377B83 is a cyan with RGB values 55, 123, 131 and HSL 186°, 41%, 36%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Teal.
Colour values
#377B83#377B83
HEX#377B83
RGBrgb(55, 123, 131)
RGB (0–1)0.2157, 0.4824, 0.5137
RGB percentages21.6%, 48.2%, 51.4%
HSLhsl(186.3, 40.9%, 36.5%)
HSV / HSBhsv(186.3, 58%, 51.4%)
CMYK58%, 6.1%, 0%, 48.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,636,099
CSS custom property--colour: #377B83;
Brightness & contrast
Relative luminance0.16617WCAG 2.x, 0 is black and 1 is white
Perceived brightness108.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.86:1
Contrast with white4.86:1WCAG normal text: AA
Contrast with black4.32:1WCAG normal text: Fail
Greyscale equivalent#6D6D6D
Inverted#C8847C
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text4.86:1WCAG large text: AAA
Contrast with black, large text4.32:1WCAG large text: AA
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#833F37
Analogous#378365, #375583
Triadic#83377B, #7B8337
Split complementary#833755, #836537
Tetradic#653783, #833F37, #558337
Tints, shades & saturation
Channel breakdown
R55
G123
B131
Red55 (21.6%)
Green123 (48.2%)
Blue131 (51.4%)
Hue186.32°
Saturation (HSL)40.86%
Lightness36.47%
Dominant channelBlue
Hex per channelR 37 · G 7B · B 83
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