Recognised as Colour
#2B33BB
- #2B33BB
- Blue
- Dark
- Nearest: Dark blue
#2B33BB is a blue with RGB values 43, 51, 187 and HSL 237°, 63%, 45%. It is a dark colour, so white text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#2B33BB#2B33BB
HEX#2B33BB
RGBrgb(43, 51, 187)
RGB (0–1)0.1686, 0.2, 0.7333
RGB percentages16.9%, 20%, 73.3%
HSLhsl(236.7, 62.6%, 45.1%)
HSV / HSBhsv(236.7, 77%, 73.3%)
CMYK77%, 72.7%, 0%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,831,291
CSS custom property--colour: #2B33BB;
Brightness & contrast
Relative luminance0.06469WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.16:1
Contrast with white9.16:1WCAG normal text: AAA
Contrast with black2.29:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#D4CC44
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.16:1WCAG large text: AAA
Contrast with black, large text2.29:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#BBB32B
Analogous#2B7BBB, #6B2BBB
Triadic#BB2B33, #33BB2B
Split complementary#BB6B2B, #7BBB2B
Tetradic#BB2B7B, #BBB32B, #2BBB6B
Tints, shades & saturation
Channel breakdown
R43
G51
B187
Red43 (16.9%)
Green51 (20%)
Blue187 (73.3%)
Hue236.67°
Saturation (HSL)62.61%
Lightness45.1%
Dominant channelBlue
Hex per channelR 2B · G 33 · B BB
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