Recognised as Colour
#2921B2
- #2921B2
- Blue
- Dark
- Nearest: Dark blue
#2921B2 is a blue with RGB values 41, 33, 178 and HSL 243°, 69%, 41%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#2921B2#2921B2
HEX#2921B2
RGBrgb(41, 33, 178)
RGB (0–1)0.1608, 0.1294, 0.698
RGB percentages16.1%, 12.9%, 69.8%
HSLhsl(243.3, 68.7%, 41.4%)
HSV / HSBhsv(243.3, 81.5%, 69.8%)
CMYK77%, 81.5%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,695,602
CSS custom property--colour: #2921B2;
Brightness & contrast
Relative luminance0.04773WCAG 2.x, 0 is black and 1 is white
Perceived brightness68.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.74:1
Contrast with white10.74:1WCAG normal text: AAA
Contrast with black1.95:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#D6DE4D
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.74:1WCAG large text: AAA
Contrast with black, large text1.95:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#AAB221
Analogous#2161B2, #7221B2
Triadic#B22921, #21B229
Split complementary#B27221, #61B221
Tetradic#B22161, #AAB221, #21B272
Tints, shades & saturation
Channel breakdown
R41
G33
B178
Red41 (16.1%)
Green33 (12.9%)
Blue178 (69.8%)
Hue243.31°
Saturation (HSL)68.72%
Lightness41.37%
Dominant channelBlue
Hex per channelR 29 · G 21 · B B2
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