Recognised as Colour
#311B92
- #311B92
- Blue
- Dark
- Nearest: Navy
#311B92 is a blue with RGB values 49, 27, 146 and HSL 251°, 69%, 34%. It is a dark colour, so white text on it reaches 12.3:1 contrast (AAA for normal text). The nearest named colour is Navy.
Colour values
#311B92#311B92
HEX#311B92
RGBrgb(49, 27, 146)
RGB (0–1)0.1922, 0.1059, 0.5725
RGB percentages19.2%, 10.6%, 57.3%
HSLhsl(251.1, 68.8%, 33.9%)
HSV / HSBhsv(251.1, 81.5%, 57.3%)
CMYK66.4%, 81.5%, 0%, 42.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,218,322
CSS custom property--colour: #311B92;
Brightness & contrast
Relative luminance0.03512WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.34:1
Contrast with white12.34:1WCAG normal text: AAA
Contrast with black1.7:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#CEE46D
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.34:1WCAG large text: AAA
Contrast with black, large text1.7:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#7C921B
Analogous#1B4092, #6D1B92
Triadic#92311B, #1B9231
Split complementary#926D1B, #40921B
Tetradic#921B40, #7C921B, #1B926D
Tints, shades & saturation
Channel breakdown
R49
G27
B146
Red49 (19.2%)
Green27 (10.6%)
Blue146 (57.3%)
Hue251.09°
Saturation (HSL)68.79%
Lightness33.92%
Dominant channelBlue
Hex per channelR 31 · G 1B · B 92
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