Recognised as Colour
#23178D
- #23178D
- Blue
- Dark
- Nearest: Navy
#23178D is a blue with RGB values 35, 23, 141 and HSL 246°, 72%, 32%. It is a dark colour, so white text on it reaches 13.3:1 contrast (AAA for normal text). The nearest named colour is Navy.
Colour values
#23178D#23178D
HEX#23178D
RGBrgb(35, 23, 141)
RGB (0–1)0.1373, 0.0902, 0.5529
RGB percentages13.7%, 9%, 55.3%
HSLhsl(246.1, 72%, 32.2%)
HSV / HSBhsv(246.1, 83.7%, 55.3%)
CMYK75.2%, 83.7%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,299,789
CSS custom property--colour: #23178D;
Brightness & contrast
Relative luminance0.02893WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.3:1
Contrast with white13.3:1WCAG normal text: AAA
Contrast with black1.58:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#DCE872
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.3:1WCAG large text: AAA
Contrast with black, large text1.58:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#818D17
Analogous#17468D, #5E178D
Triadic#8D2317, #178D23
Split complementary#8D5E17, #468D17
Tetradic#8D1746, #818D17, #178D5E
Tints, shades & saturation
Channel breakdown
R35
G23
B141
Red35 (13.7%)
Green23 (9%)
Blue141 (55.3%)
Hue246.1°
Saturation (HSL)71.95%
Lightness32.16%
Dominant channelBlue
Hex per channelR 23 · G 17 · B 8D
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