Recognised as Colour
#171AA0
- #171AA0
- Blue
- Dark
- Nearest: Dark blue
#171AA0 is a blue with RGB values 23, 26, 160 and HSL 239°, 75%, 36%. It is a dark colour, so white text on it reaches 12.4:1 contrast (AAA for normal text). The nearest named colour is Dark blue.
Colour values
#171AA0#171AA0
HEX#171AA0
RGBrgb(23, 26, 160)
RGB (0–1)0.0902, 0.102, 0.6275
RGB percentages9%, 10.2%, 62.7%
HSLhsl(238.7, 74.9%, 35.9%)
HSV / HSBhsv(238.7, 85.6%, 62.7%)
CMYK85.6%, 83.8%, 0%, 37.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,514,144
CSS custom property--colour: #171AA0;
Brightness & contrast
Relative luminance0.03459WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.41:1
Contrast with white12.41:1WCAG normal text: AAA
Contrast with black1.69:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#E8E55F
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.41:1WCAG large text: AAA
Contrast with black, large text1.69:1WCAG large text: Fail
Named colours
Hue familyblue
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#A09D17
Analogous#175EA0, #5917A0
Triadic#A0171A, #1AA017
Split complementary#A05917, #5EA017
Tetradic#A0175E, #A09D17, #17A059
Tints, shades & saturation
Channel breakdown
R23
G26
B160
Red23 (9%)
Green26 (10.2%)
Blue160 (62.7%)
Hue238.69°
Saturation (HSL)74.86%
Lightness35.88%
Dominant channelBlue
Hex per channelR 17 · G 1A · B A0
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