Colour
#03218D
- #03218D
- Blue
- Dark
- Nearest: Midnight blue
#03218D is a blue with RGB values 3, 33, 141 and HSL 227°, 96%, 28%. It is a dark colour, so white text on it reaches 13.1:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.
Colour values
#03218D#03218D
HEX#03218D
RGBrgb(3, 33, 141)
RGB (0–1)0.0118, 0.1294, 0.5529
RGB percentages1.2%, 12.9%, 55.3%
HSLhsl(227, 95.8%, 28.2%)
HSV / HSBhsv(227, 97.9%, 55.3%)
CMYK97.9%, 76.6%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer205,197
CSS custom property--colour: #03218D;
Brightness & contrast
Relative luminance0.0303WCAG 2.x, 0 is black and 1 is white
Perceived brightness53.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.08:1
Contrast with white13.08:1WCAG normal text: AAA
Contrast with black1.61:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#FCDE72
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.08:1WCAG large text: AAA
Contrast with black, large text1.61:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#8D6F03
Analogous#03668D, #2A038D
Triadic#8D0321, #218D03
Split complementary#8D2A03, #668D03
Tetradic#8D0366, #8D6F03, #038D2A
Tints, shades & saturation
Channel breakdown
R3
G33
B141
Red3 (1.2%)
Green33 (12.9%)
Blue141 (55.3%)
Hue226.96°
Saturation (HSL)95.83%
Lightness28.24%
Dominant channelBlue
Hex per channelR 03 · G 21 · B 8D
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