Recognised as Colour
#372FAA
- #372FAA
- Blue
- Dark
- Nearest: Navy
#372FAA is a blue with RGB values 55, 47, 170 and HSL 244°, 57%, 43%. It is a dark colour, so white text on it reaches 9.8:1 contrast (AAA for normal text). The nearest named colour is Navy.
Colour values
#372FAA#372FAA
HEX#372FAA
RGBrgb(55, 47, 170)
RGB (0–1)0.2157, 0.1843, 0.6667
RGB percentages21.6%, 18.4%, 66.7%
HSLhsl(243.9, 56.7%, 42.5%)
HSV / HSBhsv(243.9, 72.4%, 66.7%)
CMYK67.6%, 72.4%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,616,682
CSS custom property--colour: #372FAA;
Brightness & contrast
Relative luminance0.05748WCAG 2.x, 0 is black and 1 is white
Perceived brightness74.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.77:1
Contrast with white9.77:1WCAG normal text: AAA
Contrast with black2.15:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#C8D055
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.77:1WCAG large text: AAA
Contrast with black, large text2.15:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#A2AA2F
Analogous#2F64AA, #752FAA
Triadic#AA372F, #2FAA37
Split complementary#AA752F, #64AA2F
Tetradic#AA2F64, #A2AA2F, #2FAA75
Tints, shades & saturation
Channel breakdown
R55
G47
B170
Red55 (21.6%)
Green47 (18.4%)
Blue170 (66.7%)
Hue243.9°
Saturation (HSL)56.68%
Lightness42.55%
Dominant channelBlue
Hex per channelR 37 · G 2F · B AA
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