Recognised as Colour
#1F3734
- #1F3734
- Cyan
- Dark
- Nearest: Dark slate grey
#1F3734 is a cyan with RGB values 31, 55, 52 and HSL 173°, 28%, 17%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#1F3734#1F3734
HEX#1F3734
RGBrgb(31, 55, 52)
RGB (0–1)0.1216, 0.2157, 0.2039
RGB percentages12.2%, 21.6%, 20.4%
HSLhsl(172.5, 27.9%, 16.9%)
HSV / HSBhsv(172.5, 43.6%, 21.6%)
CMYK43.6%, 0%, 5.5%, 78.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,045,748
CSS custom property--colour: #1F3734;
Brightness & contrast
Relative luminance0.03272WCAG 2.x, 0 is black and 1 is white
Perceived brightness48.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.69:1
Contrast with white12.69:1WCAG normal text: AAA
Contrast with black1.65:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#E0C8CB
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.69:1WCAG large text: AAA
Contrast with black, large text1.65:1WCAG large text: Fail
Named colours
Hue familycyan
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#371F22
Analogous#1F3728, #1F2E37
Triadic#341F37, #37341F
Split complementary#371F2E, #37281F
Tetradic#281F37, #371F22, #2E371F
Tints, shades & saturation
Channel breakdown
R31
G55
B52
Red31 (12.2%)
Green55 (21.6%)
Blue52 (20.4%)
Hue172.5°
Saturation (HSL)27.91%
Lightness16.86%
Dominant channelGreen
Hex per channelR 1F · G 37 · B 34
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