Colour
#210C71
- #210C71
- Blue
- Dark
- Nearest: Midnight blue
#210C71 is a blue with RGB values 33, 12, 113 and HSL 252°, 81%, 25%. It is a dark colour, so white text on it reaches 15.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.
Colour values
#210C71#210C71
HEX#210C71
RGBrgb(33, 12, 113)
RGB (0–1)0.1294, 0.0471, 0.4431
RGB percentages12.9%, 4.7%, 44.3%
HSLhsl(252.5, 80.8%, 24.5%)
HSV / HSBhsv(252.5, 89.4%, 44.3%)
CMYK70.8%, 89.4%, 0%, 55.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,165,873
CSS custom property--colour: #210C71;
Brightness & contrast
Relative luminance0.01779WCAG 2.x, 0 is black and 1 is white
Perceived brightness43.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.49:1
Contrast with white15.49:1WCAG normal text: AAA
Contrast with black1.36:1WCAG normal text: Fail
Greyscale equivalent#181818
Inverted#DEF38E
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text15.49:1WCAG large text: AAA
Contrast with black, large text1.36:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#5C710C
Analogous#0C2971, #540C71
Triadic#71210C, #0C7121
Split complementary#71540C, #29710C
Tetradic#710C29, #5C710C, #0C7154
Tints, shades & saturation
Channel breakdown
R33
G12
B113
Red33 (12.9%)
Green12 (4.7%)
Blue113 (44.3%)
Hue252.48°
Saturation (HSL)80.8%
Lightness24.51%
Dominant channelBlue
Hex per channelR 21 · G 0C · B 71
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