Colour
#171CAE
- #171CAE
- Blue
- Dark
- Nearest: Dark blue
#171CAE is a blue with RGB values 23, 28, 174 and HSL 238°, 77%, 39%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#171CAE#171CAE
HEX#171CAE
RGBrgb(23, 28, 174)
RGB (0–1)0.0902, 0.1098, 0.6824
RGB percentages9%, 11%, 68.2%
HSLhsl(238, 76.6%, 38.6%)
HSV / HSBhsv(238, 86.8%, 68.2%)
CMYK86.8%, 83.9%, 0%, 31.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,514,670
CSS custom property--colour: #171CAE;
Brightness & contrast
Relative luminance0.04069WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.58:1
Contrast with white11.58:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#E8E351
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.58:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#AEA917
Analogous#1768AE, #5D17AE
Triadic#AE171C, #1CAE17
Split complementary#AE5E17, #68AE17
Tetradic#AE1768, #AEA917, #17AE5E
Tints, shades & saturation
Channel breakdown
R23
G28
B174
Red23 (9%)
Green28 (11%)
Blue174 (68.2%)
Hue238.01°
Saturation (HSL)76.65%
Lightness38.63%
Dominant channelBlue
Hex per channelR 17 · G 1C · B AE
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